I got into a headscratcher because my gnome-keyring was reset while using the advanced killswitch. After a reboot I was logged out of PVPN and couldn't disable the killswitch since the settings button of the app was disabled. Alternative idea, include this command in the setup guide for Linux so other people with a similar issue can look up the solution from their phone or something: nmcli con delete pvpn-killswitch-perm