Using Sonos 11.1 on Windows 10, I am unable to access Manage → Settings. When I do the Sonos app just exits. This occurs on a laptop, and also my desktop PC.
I don’t know if it is related or not, but when I start Sonos I see a message regarding one of my speakers being unplugged. I have a Sonos Play One in the bathroom upstairs which I keep turned off unless using, because when I say “Alexa”, it responds (answers) and emits this loud beep, even when I’m downstairs.