FLEABttn, do you have any other inputs in use on your 4K TV? I got the HDCP error and tried removing my eARC and Blu-Ray cables and it went away. I have my Hopper 3 connected directly instead of through my AVR. I replaced my eARC HDMI cable with a high-speed cable (the old cable was a MonoPrice cable I’ve had for at least a dozen years.).
There was also a 4” HDMI M-F flat extension that was needed due to the bend radius on the MonoPrice cable preventing it from not sticking out from behind the bezel. That could have been the problem as well.