I need some troubleshooting help. I have a 77" LG CX and a Denon x3300W AVR. All inputs except my XBOX Series X run through the Denon. The XBOX runs to the TV (to take advantage of the 120 hz output) and I then use ARC to the receiver. Last night I turned on the XBOX and I got no volume. No changes were made to any settings. The XBOX outputs bitstream Dolby Surround. The LG is set to input bitstream and output over ARC. And in the Denon ARC is turned on, and CEC is turned off. It worked fine since I got the TV in January.\n\nI have done all the trouble shooting I know to do. When I switch the LG to output to the TV speakers, I get audio when I use the XBOX. So that tells me the problem is with the ARC between the TV and the AVR. I have unplugged the HDMI cable between the TV and AVR and disconnected both power cables. Plugging them back in did nothing. That is the end of my ideas.\n\nAnyone have any other ideas to try?