Closing the loop on this troubleshooting (hopefully it'll help someone else). I reset the dash screen by holding down both the left and right steering wheel scroll buttons for about 5 secs. I'm going to assume that restarts the computer which powers everything? I don't know, I was parked at the time. Anyway, I thought this method was mentioned elsewhere on the internet and didn't work. But when I did it a couple of days ago, it worked. WIFI reconnected to my phone's hotspot. Later when I got home, it automatically reconnected to my home WIFI. So now my software updates are up-to-date. Just an FYI for those who encounter problems in the future and stumble upon this thread. Cheers!