diff --git a/ct/adguard-v5.sh b/ct/adguard-v5.sh
index 19253057..da147dfc 100644
--- a/ct/adguard-v5.sh
+++ b/ct/adguard-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -225,6 +227,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -358,7 +371,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/alpine-v5.sh b/ct/alpine-v5.sh
index e43b5c22..db759dd5 100644
--- a/ct/alpine-v5.sh
+++ b/ct/alpine-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -223,6 +225,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -337,7 +350,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/archlinux-v5.sh b/ct/archlinux-v5.sh
index c56f9b8a..da561a1f 100644
--- a/ct/archlinux-v5.sh
+++ b/ct/archlinux-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/blocky-v5.sh b/ct/blocky-v5.sh
index d460035c..59d2c74d 100644
--- a/ct/blocky-v5.sh
+++ b/ct/blocky-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/casaos-v5.sh b/ct/casaos-v5.sh
index 6540b4d1..740930aa 100644
--- a/ct/casaos-v5.sh
+++ b/ct/casaos-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -228,6 +230,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -351,7 +364,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/changedetection-v5.sh b/ct/changedetection-v5.sh
index 7facabc7..88aa8595 100644
--- a/ct/changedetection-v5.sh
+++ b/ct/changedetection-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/cronicle-v5.sh b/ct/cronicle-v5.sh
index 366f1a15..f10caccb 100644
--- a/ct/cronicle-v5.sh
+++ b/ct/cronicle-v5.sh
@@ -115,6 +115,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -224,6 +226,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -388,7 +401,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/daemonsync-v5.sh b/ct/daemonsync-v5.sh
index 9aeafa7a..39305f4a 100644
--- a/ct/daemonsync-v5.sh
+++ b/ct/daemonsync-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/dashy-v5.sh b/ct/dashy-v5.sh
index 68308c59..eb18f3a7 100644
--- a/ct/dashy-v5.sh
+++ b/ct/dashy-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -367,7 +380,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/debian-v5.sh b/ct/debian-v5.sh
index d357e70c..f4a14602 100644
--- a/ct/debian-v5.sh
+++ b/ct/debian-v5.sh
@@ -113,6 +113,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -222,6 +224,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -336,7 +349,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/deconz-v5.sh b/ct/deconz-v5.sh
index 96f6c164..4a50fe38 100644
--- a/ct/deconz-v5.sh
+++ b/ct/deconz-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/docker-v5.sh b/ct/docker-v5.sh
index 05a3e7d1..c90ee4b0 100644
--- a/ct/docker-v5.sh
+++ b/ct/docker-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -348,7 +361,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/emby-v5.sh b/ct/emby-v5.sh
index d437d570..1c8f4031 100644
--- a/ct/emby-v5.sh
+++ b/ct/emby-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -235,6 +237,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -360,7 +373,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/emqx-v5.sh b/ct/emqx-v5.sh
index 1c7fd2d7..053de5a0 100644
--- a/ct/emqx-v5.sh
+++ b/ct/emqx-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/esphome-v5.sh b/ct/esphome-v5.sh
index 08853e26..647a05ca 100644
--- a/ct/esphome-v5.sh
+++ b/ct/esphome-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -347,7 +360,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/grafana-v5.sh b/ct/grafana-v5.sh
index d8e30cfa..71c801d9 100644
--- a/ct/grafana-v5.sh
+++ b/ct/grafana-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/grocy-v5.sh b/ct/grocy-v5.sh
index 4c968ca2..1f45f898 100644
--- a/ct/grocy-v5.sh
+++ b/ct/grocy-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/heimdalldashboard-v5.sh b/ct/heimdalldashboard-v5.sh
index 6105a6b5..466269e5 100644
--- a/ct/heimdalldashboard-v5.sh
+++ b/ct/heimdalldashboard-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -420,7 +433,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homeassistant-core-v5.sh b/ct/homeassistant-core-v5.sh
index 8008bf97..46bf2b5f 100644
--- a/ct/homeassistant-core-v5.sh
+++ b/ct/homeassistant-core-v5.sh
@@ -120,6 +120,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -230,6 +232,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -417,7 +430,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homeassistant-v5.sh b/ct/homeassistant-v5.sh
index f2c18915..043eebb4 100644
--- a/ct/homeassistant-v5.sh
+++ b/ct/homeassistant-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -230,6 +232,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -416,7 +429,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homebridge-v5.sh b/ct/homebridge-v5.sh
index 3e8d27d1..f635f3d6 100644
--- a/ct/homebridge-v5.sh
+++ b/ct/homebridge-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homepage-v5.sh b/ct/homepage-v5.sh
index 08342af6..5e293376 100644
--- a/ct/homepage-v5.sh
+++ b/ct/homepage-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -347,7 +360,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/hyperion-v5.sh b/ct/hyperion-v5.sh
index ea2db61e..f2b83c82 100644
--- a/ct/hyperion-v5.sh
+++ b/ct/hyperion-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/influxdb-v5.sh b/ct/influxdb-v5.sh
index 0c854a39..18e5e1ef 100644
--- a/ct/influxdb-v5.sh
+++ b/ct/influxdb-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/iobroker-v5.sh b/ct/iobroker-v5.sh
index f5e08b8e..e5863828 100644
--- a/ct/iobroker-v5.sh
+++ b/ct/iobroker-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/jellyfin-v5.sh b/ct/jellyfin-v5.sh
index 1c500c18..91b007ef 100644
--- a/ct/jellyfin-v5.sh
+++ b/ct/jellyfin-v5.sh
@@ -120,6 +120,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -237,6 +239,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -350,7 +363,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/k0s-v5.sh b/ct/k0s-v5.sh
index 194d5d25..7a578549 100644
--- a/ct/k0s-v5.sh
+++ b/ct/k0s-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/keycloak-v5.sh b/ct/keycloak-v5.sh
index 78dfca0a..f23f1c32 100644
--- a/ct/keycloak-v5.sh
+++ b/ct/keycloak-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/magicmirror-v5.sh b/ct/magicmirror-v5.sh
index 74e32759..199ded64 100644
--- a/ct/magicmirror-v5.sh
+++ b/ct/magicmirror-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -343,7 +356,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/mariadb-v5.sh b/ct/mariadb-v5.sh
index 72d2af41..82f7c71a 100644
--- a/ct/mariadb-v5.sh
+++ b/ct/mariadb-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/meshcentral-v5.sh b/ct/meshcentral-v5.sh
index 6f83cd69..ac9500ff 100644
--- a/ct/meshcentral-v5.sh
+++ b/ct/meshcentral-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/motioneye-v5.sh b/ct/motioneye-v5.sh
index 94b1d14a..7d4fe34c 100644
--- a/ct/motioneye-v5.sh
+++ b/ct/motioneye-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/mqtt-v5.sh b/ct/mqtt-v5.sh
index bff59605..707624b8 100644
--- a/ct/mqtt-v5.sh
+++ b/ct/mqtt-v5.sh
@@ -115,6 +115,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -224,6 +226,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/n8n-v5.sh b/ct/n8n-v5.sh
index de9aef30..69437e2a 100644
--- a/ct/n8n-v5.sh
+++ b/ct/n8n-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/navidrome-v5.sh b/ct/navidrome-v5.sh
index 53750da7..beab0978 100644
--- a/ct/navidrome-v5.sh
+++ b/ct/navidrome-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -352,7 +365,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/nextcloudpi-v5.sh b/ct/nextcloudpi-v5.sh
index 511f39f8..a993d3bc 100644
--- a/ct/nextcloudpi-v5.sh
+++ b/ct/nextcloudpi-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/nginxproxymanager-v5.sh b/ct/nginxproxymanager-v5.sh
index ccb6d296..94954f7f 100644
--- a/ct/nginxproxymanager-v5.sh
+++ b/ct/nginxproxymanager-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -450,7 +463,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/nocodb-v5.sh b/ct/nocodb-v5.sh
index 1b6510da..1fd54974 100644
--- a/ct/nocodb-v5.sh
+++ b/ct/nocodb-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -344,7 +357,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/node-red-v5.sh b/ct/node-red-v5.sh
index 0a207309..3743a71a 100644
--- a/ct/node-red-v5.sh
+++ b/ct/node-red-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -377,7 +390,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/omada-v5.sh b/ct/omada-v5.sh
index ef01599e..e6aa93bd 100644
--- a/ct/omada-v5.sh
+++ b/ct/omada-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -235,6 +237,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -339,7 +352,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/omv-v5.sh b/ct/omv-v5.sh
index a9a5366a..e7ed0d62 100644
--- a/ct/omv-v5.sh
+++ b/ct/omv-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/openhab-v5.sh b/ct/openhab-v5.sh
index 033c762c..401b85b7 100644
--- a/ct/openhab-v5.sh
+++ b/ct/openhab-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/paperless-ngx-v5.sh b/ct/paperless-ngx-v5.sh
index 9e6d1c24..411463c0 100644
--- a/ct/paperless-ngx-v5.sh
+++ b/ct/paperless-ngx-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -409,7 +422,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/photoprism-v5.sh b/ct/photoprism-v5.sh
index 5e5a9961..4691eb67 100644
--- a/ct/photoprism-v5.sh
+++ b/ct/photoprism-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -225,6 +227,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -362,7 +375,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/pihole-v5.sh b/ct/pihole-v5.sh
index a153ed0f..a6e3e22f 100644
--- a/ct/pihole-v5.sh
+++ b/ct/pihole-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/plex-v5.sh b/ct/plex-v5.sh
index c6d04cf2..537f8bf5 100644
--- a/ct/plex-v5.sh
+++ b/ct/plex-v5.sh
@@ -119,6 +119,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -236,6 +238,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -360,7 +373,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/podman-homeassistant-v5.sh b/ct/podman-homeassistant-v5.sh
index 43d158ec..995ca428 100644
--- a/ct/podman-homeassistant-v5.sh
+++ b/ct/podman-homeassistant-v5.sh
@@ -121,6 +121,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -230,6 +232,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -391,7 +404,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/podman-v5.sh b/ct/podman-v5.sh
index 9ce8f0d8..32670543 100644
--- a/ct/podman-v5.sh
+++ b/ct/podman-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/postgresql-v5.sh b/ct/postgresql-v5.sh
index e1412d2f..73bf41f5 100644
--- a/ct/postgresql-v5.sh
+++ b/ct/postgresql-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/prometheus-v5.sh b/ct/prometheus-v5.sh
index 490bd911..8b46ddcf 100644
--- a/ct/prometheus-v5.sh
+++ b/ct/prometheus-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/scrypted-v5.sh b/ct/scrypted-v5.sh
index 788759d7..1070f901 100644
--- a/ct/scrypted-v5.sh
+++ b/ct/scrypted-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/shinobi-v5.sh b/ct/shinobi-v5.sh
index 94d0b2f8..4e3f1107 100644
--- a/ct/shinobi-v5.sh
+++ b/ct/shinobi-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -235,6 +237,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -351,7 +364,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/syncthing-v5.sh b/ct/syncthing-v5.sh
index 892c06f1..4825b5ab 100644
--- a/ct/syncthing-v5.sh
+++ b/ct/syncthing-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/technitiumdns-v5.sh b/ct/technitiumdns-v5.sh
index 696fdd95..9e55abd1 100644
--- a/ct/technitiumdns-v5.sh
+++ b/ct/technitiumdns-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -403,7 +416,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/trilium-v5.sh b/ct/trilium-v5.sh
index 54cbf786..88cdc017 100644
--- a/ct/trilium-v5.sh
+++ b/ct/trilium-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -360,7 +373,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/ubuntu-v5.sh b/ct/ubuntu-v5.sh
index 5433958e..6fb92d13 100644
--- a/ct/ubuntu-v5.sh
+++ b/ct/ubuntu-v5.sh
@@ -114,6 +114,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -231,6 +233,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -344,7 +357,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/umbrel-v5.sh b/ct/umbrel-v5.sh
index 047ec077..9a2b7b0e 100644
--- a/ct/umbrel-v5.sh
+++ b/ct/umbrel-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -228,6 +230,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -349,7 +362,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/unifi-v5.sh b/ct/unifi-v5.sh
index 02550614..d8f71fe2 100644
--- a/ct/unifi-v5.sh
+++ b/ct/unifi-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/uptimekuma-v5.sh b/ct/uptimekuma-v5.sh
index a82870c4..81f77d75 100644
--- a/ct/uptimekuma-v5.sh
+++ b/ct/uptimekuma-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -358,7 +371,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/vaultwarden-v5.sh b/ct/vaultwarden-v5.sh
index 0a607672..65002322 100644
--- a/ct/vaultwarden-v5.sh
+++ b/ct/vaultwarden-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -409,7 +422,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/whoogle-v5.sh b/ct/whoogle-v5.sh
index 08741c4c..a92970eb 100644
--- a/ct/whoogle-v5.sh
+++ b/ct/whoogle-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/wikijs-v5.sh b/ct/wikijs-v5.sh
index c38f34d1..a8785853 100644
--- a/ct/wikijs-v5.sh
+++ b/ct/wikijs-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -354,7 +367,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/wireguard-v5.sh b/ct/wireguard-v5.sh
index 4d825bd5..333635b5 100644
--- a/ct/wireguard-v5.sh
+++ b/ct/wireguard-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -396,7 +409,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/yunohost-v5.sh b/ct/yunohost-v5.sh
index a1382e7f..9a44f24e 100644
--- a/ct/yunohost-v5.sh
+++ b/ct/yunohost-v5.sh
@@ -113,6 +113,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -222,6 +224,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -336,7 +349,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/zigbee2mqtt-v5.sh b/ct/zigbee2mqtt-v5.sh
index 5c8348f4..1d4d9cc1 100644
--- a/ct/zigbee2mqtt-v5.sh
+++ b/ct/zigbee2mqtt-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -371,7 +384,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/zwave-js-ui-v5.sh b/ct/zwave-js-ui-v5.sh
index 1b5fb451..3b7394df 100644
--- a/ct/zwave-js-ui-v5.sh
+++ b/ct/zwave-js-ui-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -354,7 +367,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE