I have Sonos Amp (about 3 years old), connected to TV and two B&W Speakers with Wharfdale passive sub. Brilliant.
I had a Samsung Smart TV, and ARC worked well.
I now have new LG CX 65” TV, and have issues with ARC.
No ARC Audio passes to the Sonos. I have to use “Internal Speaker” on the TV.
Sonos is now off/standby, useless, and gathering dust… :-(
It once worked after a power outage, some sequence of power-on may have coincidentally worked.
This was only once, till I switched the TV off. After that, I had to go back to “Internal Speaker” on the TV again.
I have tried many times, all combinations of settings.
Sonos 2 App on iPhone fails to connect to TV.
I did a Diagnostics = Ref 2071482316
Please could you assist?