I've had this happen about 3 times now and this time I copied the output from DNF of the packages around the time network connectivity was lost.

The network icon in Gnome shell changes to a question mark and I haven't found a solution (including restarting NetworkManager) that fixes it. The only solution I've found so far is rebooting.

I'm going to try doing a "dnf reinstall" of the packages that have anything to do with networking and see if I can find out which package it is.

Has anyone else seen this?

Thanks,
Richard