Troubleshooting

• This script will not work if you're on an ethernet-only machine.
• If you're in a headless environment, you will have to customize the script, it's original intent was for a graphical notification

Raspberry Pi Usage

If the script doesn't sense a wifi connection, it is likely being managed by another networking application.

intellamech.com has a nice write-up on how to use nmcli/network manager on the Pi.

After following the steps, if errors persist, disable the dhcpcd daemon:

systemctl disable dhcpcd

For persisting issues, see if nmcli can see your wifi interface:

nmcli dev status

If your wifi reads unavailable, remove the following packages:

sudo apt purge openresolv dhcpcd5