My issues are as mentioned above.
Basically, this happened after i accidentally plugged out my HDMI on the ARC port. Since then, my Surrounds system (Beam, One, and One SL) no longer working as how it should until I set it up again.
I have tried to reboot my tv Samsung (UA43RU7100KXXS) by unplugging them from the power source (after a min) then plugging them back in. It’s not working.
I have tried to unplug the Beam off the tv and power source, did the same, it is still not working.
I have tried the method Sonos suggested, unplug all HDMI, start with HDMI-ARC first, then fix the rest, it worked but only temporarily. Once I switched off my tv, and on again it goes back to normal tv volume.
Anyone has any idea to fix this issue permanently? My only regret was I accidentally plugged out the HDMI from ARC port.
*I have also tried other methods provided by Sonos. To switch off and on the Anynet+ (HDMI-CEC), same issue.