Okay, nevermind, in my case it was enough to delete the VPN connections and then add them again with the "Edit Connection..." option in the nm-applet menu (somehow "VPN Connections -> Configure VPN..." is grayed out and cannot be called). Once created again, the VPN connection work just fine as they used to. Maybe mine is a completely different problem.
Okay, nevermind, in my case it was enough to delete the VPN connections and then add them again with the "Edit Connection..." option in the nm-applet menu (somehow "VPN Connections -> Configure VPN..." is grayed out and cannot be called). Once created again, the VPN connection work just fine as they used to. Maybe mine is a completely different problem.