I am having a strange audio issue with an Anthem AVM60 and a Hisense U8N 75". They are connected using the ARC channel. I have run the signal in two ways: Roku to AVM60 to Hisense. This has no issues. The other way is to run the signal to the TV (ethernet connection) and then to the Anthem. When I do this, the audio cuts out at random intervals (between 2 and 10 minutes) for about 3 seconds each time. It's extremely annoying. And it is source agnostic - Apple TV, Netflix, Prime Video etc. all experience this issue.
Unfortunately, I prefer to run through the TV because that allows me to bypass the Roku and use the TV remote to manage everything. Using the Roku means I have three remotes - one for the Roku, one for Anthem (volume) and one for the TV if I have to play with settings. Since the signal works one way just fine I assume I can I rule out cable and connection issues. So is there some audio processing problem with the TV? Is there a software issue between the TV and the Anthem? I'm stumped on how to proceed with this and would really appreciate any and all thoughts y'all might have. Thanks!