This sounds remarkably similar to what I’m experiencing. The update went smoothly but connecting to wifi isn’t happening for me. Given time (a LOT of time!), the ADD screen will be populated with some of the available wifi networks.
When my network has been found and added, connecting to it is a fairly hit-&-miss affair. When I choose the network in the CONNECT screen, the network name will be displayed alongside NETWORK, the STATUS will change to activating, and then after a minute or two, the network name will disappear and the STATUS will either display unavailable, or more often nothing at all.
If I do manage to find, add, and connect to my network, it’s not saved; after a reset or a sleep and restart, I come back to SYSTEM>WIFI and then have to start the whole process all over again.
I can ssh to norns OK; is there a config file that I can delete, or permissions that I can change or even some logs that might show what’s happening? Might the wifi dongle be damaged?
I just tried the nmtui on norns and that worked first time without a problem.
EDIT : All of the above goes for trying the wifi nub in multiple ports and booting norns with it connected.