I changed my configuration and removed some speakers from my system.
When I turned them off they stayed in the app and there was only the option to “hide” them, but it didn’t work.
I checked this board for the steps but didn’t find a solution, I just went through it with chat support and the below method worked.
- Factory reset the speaker
- Open the sonos app
- A popup will come asking you to “Add” this “new speaker
- Close out of the pop-up, don’t add it.
- Restart the app.
This worked for me, the old speaker is now gone from the app.
The speaker I did it on was a roam.
I wish I had known this before I shipped the other one I had and sold because apparently, I have to wait for that one to be activated by another user before it can be removed from my app.