Thanks to all who responded. It is working now.
Once I was on the “guest” wifi, I was able update. It took several rounds of updates and reboots both in the terminal and the GUI.
Once I was updated, the path to the certs (thanks @Quarnero!) was invaluable as I had to point to the exact cert (which is the part that is very different from the mainstream where the correct cert is auto-discovered). Once that was done, it worked. I tried pointing to the cert before updates and it still wouldn’t work.
With WiFi and email (and phone when I transfer my sim), I just need to say goodbye to Pathos (https://pathos.azurewebsites.net/) on my current phone and I’ll be good to go.