I’ve spent three hours today calling between LG and Sonos Customer Support and know one can really help. I tried everything from turning off the TV/Soundbar for 30sec. Adding a new device in LG even using Philips instead of Sonos. Deactivating eARC in the LG setting, and I'm super frustrated as you would think a 1700 USD dollar TV and 400 USD soundbar would sync properly, and instead I get no tone over the Soundbar and the TV remote setup for Sonos does not work.. Does anyone have the same issue or is it just me???
Best answer by GuitarSuperstar
Try disconnecting everything from your TV and unplugging the Beam and TV from power for a couple of minutes. Plug the TV and Beam back into power but leave the Beam and any other device disconnected from the TV. Be sure Simplink (CEC) is turned on and eARC is turned off in your TV settings. Perform the TV Setup process in the Sonos app and connect the Beam to the TV’s HDMI ARC/eARC port when the app instructs you to. When the Beam is connected and working correctly, connect any other devices to your TV.
If this doesn’t work, try the same process with eARC turned on.
If that doesn’t work, you may have to connect the Beam to the TV with the optical adapter.