I have Ubuntu 22.04 installed on a Lenovo W540 and a Netgear AXE3000 USB wifi NIC. I don't use the laptop's built-in wifi card because it stops work after some time every time. Regardless, things have been working fine, but recently I'd go to the network icon in the panel, choose my wifi network associated with the USB NIC, and - after spinning for a while - say "The WiFi network could not be found", despite it showing in the panel applet.
The only partial help I've found is from this AU post. Among other things, it said to:
nmcli networking on
nmcli radio wifi
nmcli connection show
nmcli conneciton up --ask uuid <UUID> ifname <DEVICE>
The latter could be used with either NIC and it would connect.
I did notice that "Failed to start Service for snap application network-manager.networkmanager" was shown during boot-up. I tried reinstalling NetworkManager and rebooting, but nothing changed.
What can I do to be able to use the Networks widget again, instead of having to manually find the wifi UUID, enter the device, and such?
