Solved! Optical Audio issue (4k setup)

[kalamabrew]

I am currently using a Yamaha A-S501 plugged into a Samsung UN65KS8500 via an optical cable. It seems that because of this I do not get sound during previews on blu-rays, no sound at all on discs with no home menu, no sound from built in television apps, hit or miss with standard DVD when played in my Oppo UDP-203, and hit or miss with other media connected to the box via HDMI. My only suspicion is that this could be caused by the HTCP 2.2.

Has anyone else encountered this issue and found a solution?

 

[americanaudiophile]

I don't think it's the optical cable but it could be the TV. It has nothing to do with HDCP either. That would get you no picture or sound.
I suggest you change the audio output type of the Oppo in the set up menu.