I have a system with an ARC, 2 One SL’s and a SUB. It all started when I heard my sub popping every few minutes. I noticed it wasn’t connected to the room anymore. After a factory reset I finally was able to reconnect it. A few weeks later, the left surround speaker looked like it was rebooting all the time. Giving me a white led for a few minutes, then flashing white for a while, then off. I also had to factory reset it to reconnect it. Now another few weeks later, the same happened to my right surround speaker. Kept looping with factory reset, removing the surround speakers, trying to add the surround speakers again, then tried removing the sub. Eventually I wasn’t able to rejoin the surrounds with the ARC, but for some magical reason they seem to work again. But now I’m not able to add my SUB anymore and after trying to add it again, it started popping again every 2 or 3 minutes. I don’t understand what could be causing this but it really annoying. I think that I need someone to check my diagnostic file..
Best answer by Ken_Griffiths
The Sonos HT surrounds and sub will connect to your network via your Sonos Arc, rather than connecting to your network AP - they use a 5Ghz Ad-hoc wireless connection to the main device. So I would suggest first to power down your Arc and surrounds/sub for a minute or so.
Check to see there isn’t anything nearby that may interfere with their signal/connection between the Arc & surrounds. Baby monitors nearby are one such example that can cause interference.
Perhaps if you have other wireless products nearby, then try putting those on your routers 2.4Ghz band to help reduce interference.
Power back on the devices starting with the Arc, then power on each surround and try connecting your Sub again and see if that works for you.
If you do have any Sonos products wired to your network, then reply back, as there are perhaps some other things you can perhaps check in that case.
Hope the power-cycling helps to solve your issues.