I have a Arc, sub, and two SL One grouped for surround sound. After the update of Sonos voice assistant every couple days the sound bar stops playing Sonos Radio or Deezer and does not show up in the Sonos app. It is not clear but the OS might be rebooting and then connects back. I had the same thing with a SL one that the SonosNet is started from.
I removed the Sonos voice assistance from all of the speakers to see if this helps but does not. This happens when streaming music vs watching TV.
Best answer by AirgetlamView original