All was working fine for a month with my older Panasonic TV, with an HDMI ARC connection. Then it stopped working. I have plugged and unplugged the HDMI cable, the power, etc, and done all the connection exercises in the Sonos app. It’s not easy to see when the app/software was updated, so I could believe this was a Sonos update, but I don’t know.
Target has a pretty good return policy, so I’ll try once or twice more, but then just return it.