I have been having issues with my Sub, it cuts out randomly and noticeable. I cannot change the network channel (Google WiFi Mesh) so I moved the sub to the other side of the room to see if I could reduce eliminate interference.
I have a Playbase up front, two Play 1s in the rear and a sub. The Playbase is connected via Ethernet and I checked that I am using Sonosnet in the app (WM0). I noticed that one of my rear Play 1 surrounds was also plugged in via Ethernet so I disconnected the cable and “poof” Sonos network down. All Sonos devices except the Playbase appear in the app.
I also have a Beam upstairs, a Play 1 in the basement those disappeared from the network also.
I had this problem a long time ago once and turning everything off and bring it up would eventually fix it but not this time.
So I tried restoring to default one of my Play 1s and connected to the app but every single time when it is finishing configuration I get the message “Your Play 1 has been added but may not appear in the System tab.” I rebooted the speaker as told by the app and I never get a finish setup prompt in the app.
So I tried the same with the other Play 1 and same thing… I rebooted the mesh network with everything turned off, rebooted the network with everything turned on before also, same result.
So now out of my Arc, Sub, three Play 1s and Playbase I now only have the Playbase, everything else is gone.