Originally Posted by Dimitris Asimakopoulos
It's not the cable since I tried from another source to check
I saw this in the xbox and sony tv forum. We often overlook something simple that is causing the handshake issues; wrong cable, settings are wrong in the tv or cable box, blu-ray player, etc. or source is playing something the tv or avr can't handle (4k, uhd, DV).
So Try all of these and see what works?
1. verify 18gbps hdmi cables - no guessing or taking someone elses word for it
2. plug hdmi from cable box directly into tv input 1 (did that fix the issue?)
3. turn off anynet, arc-cec, dolby vision or UHD in the tv
4. your cable box might not be hdcp 2.2 compliant
5. set tv, blu-ray player, etc to detect in "auto" mode
5. power down everything, unplug the power cords for cable box, tv and receiver, then plug them back in one at a time. turn on the receiver, wait 10 seconds, turn on the tv wait 10 seconds and then the cable box. If that doesn't work then try a different order, the cable box, then receiver then tv.