I’m using the ova version of HA in Virtual Box in a Linux host.
After upgrading to 17.1, cli and Supervisor started, but the Frontend didn’t. I was not able to connect the browser to my URL, “not reachable”. After waiting 30 minutes or so I decided to fall back to slot A, and it worked again as before.
I had the same experience. Upgraded from 17.0 to 17.1 and same issue as you. I tried all usual tricks in the console. Like typing ‘banner’, ‘su repair’, restarting core, restarting the whole machine. No luck. So I went back to the other slot and I am running still on 17.0