Hi @dingdong
Hi. I finally got through to Sonos and he said I can’t use a remote to control the arc. Only thing I can do is use my phone app and turn it up and down
This only applies to CEC remotes (where the remote’s device sends commands through HDMI). It’s possible a TV could forward these even when off, but it would depend on the TV model/manufacturer.
If you have a remote transmitting IR, and a Sonos device has been programmed to accept it, the volume controls will always work - I just verified this on my Amp.
I think @Mr. T is on the right path - try things with another remote. An old Hi-Fi remote would do, or one for an old TV.
I hope this helps.
"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein