Hi there.
I have a number of older Sonos speakers and only my Sonos Play 1 and Sonos Play 3 are compatible with S2. I also have a newer Sonos system, consisting of the Sonos Arc, and some surround gear. All wroks well independently, however igf I every try and “group” the Arc with the Play 1 or Play 3 it cuts the music out. I have the same issue if trying to group the TV side from thge Arc. Sometimes it works, but generally it cuts the sound on all speakers. I have checked everything is up to date.
Any help would be greatly appreciated, and a solution shared with the community.