I’m have a problem with a Sonos ARC, it disconnects from the Sub and Surrounds when the audio input becomes active (TV, BD Player turned on). It will reconnect to the Sub and Surrounds after all Sonos components are power cycled. It will stay connected to the Sub and Surrounds as long as the audio input stays active, but if the audio input becomes inactive and then active again it disconnects from the Sub and Surrounds. It does not matter if I use eArc or the optical audio from my TV or directly from a BD player. The only thing that seams to fix the problem is to wire all the Sonos components together. But it’s not an RF interference problem because once I get the ARC, Sub and Surround to work when the TV is on, they keep working until the TV is turned off and then back on. I didn’t have a problem a month ago but there was a firmware upgrade I think broke the system. My setup has to be wireless to separate the surrounds. Does anyone have a fix?
You could still be experiencing wireless interference:
https://support.sonos.com/s/article/3286?language=en_US
If you remove the Sub and surrounds from the Arc in the Sonos app and re-add them, does it make any difference?
Do you have any other Sonos speakers wired to your router?
Run a diagnostic within 10 minutes of the Sub and surrounds disconnecting and report the confirmation number here so Sonos staff can take a look at it.
https://support.sonos.com/s/article/141?language=en_US
+1
Right now I’m using a ARRIS cable modem, but I've also tried a Linksys mesh and just an old Linksys, same problem with all three, so it’s not a router issue. Tried rebooting components with different routers and same problem. My original plan was all wireless and it worked for a month, now it only works if a components are wired. Wiring just the ARC didn’t fix the problem.
What router are you using? Try unplugging all the speakers from power for a couple of minutes and rebooting your router.
Are you able to wire just the Arc to the router with an ethernet cable?
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