The Pragmatic Addict

---

Disable Wifi when Wired

This script file will disable wifi once an ethernet cable is plugged in. It has been tested on various Debian & Mint distributions.

Network Manager

Create /etc/NetworkManager/dispatcher.d/99-wlan and add the following contents to it:

#!/bin/bash
wired_interfaces="en.*|eth.*"
if [[ "$1" =~ $wired_interfaces ]]; then
    case "$2" in
        up)
            nmcli radio wifi off
            ;;
        down)
            nmcli radio wifi on
            ;;
    esac
fi

Set the correct ownership and permissions:

chown root:root /etc/NetworkManager/dispatcher.d/99-wlan
chmod 755 /etc/NetworkManager/dispatcher.d/99-wlan

---

Created: 2024-02-03

Modified: 2024-04-01