Not sure if this is the right board.
I have a Sony TV with a Denon AVR. Since installing my Roku Express 4K+ device, my AVR shuts off at ransom (usually after a long while).
This was not a problem pre-Roku. I can't identify any trigger. I do have HDMI-CEC enabled so the Roku remote controls the AVR, but I don't know I'd that's relevant. (The random AVR shutdown happens even though I haven't touched the remote.)
The AVR emits a "click" and shuts off. I don't believe it's going into Protect Mide, because research says I'd see a red flashing light, which I don't.
Any ideas? Thanks!