I recently bought a turntable and am using Line In to a new generation Play:5. Other speakers in my apartment (Master Bedroom, Master Bath, plus others) cut out regularly. I've changed the channel to all other options, still the same. I've reordered the Rooms to use the Play:5 first as well as the Living Room, same problem.
This also happens when I watch TV and try to stream the audio to all other speakers. Any other audio options (SiriusXM or Spotify) work just fine and never cut out.
The diagnostic I just ran is 1873011857.
For reference, I was troubleshooting the TV audio problems in December last year with Mitchell. The reference for that issue (never resolved) was 171205-002379.
I live alone so it's not other users consuming wireless bandwidth. I'm running 5GHz only and don't need 2.4.