Hi, I received yesterday the new Apple TV 4K (I own a 4th gen as well). Swapped the old one for the new one, the new one detected the HDMI CEC connection (Sony AV receiver & TV) and I could control the volume of the AV receiver and could also switch on or off both the TV and the receiver (same as the 4th gen did). However, upon waking up from sleep the 4K version, TV and receiver both wake up BUT I then lose the connection. I get a pop up message saying the volume control is not configured and asks me to set it up. I then went in the settings, and the option "Control TVs and Receivers" is now turned Off and I can't switch it back On.... I fully restored the new Apple TV 4K, but the same unwanted behavior is still there. Before calling for support, I swapped the 4th gen version back, and everything is working fine with it! I called Apple support this morning, they told me they hadn't been yet contacted for similar issues. I now am sending it back and Apple will provide a replacement, I hope it's an hardware issue (limited to the unit I received) and that the replacement unit will work flawlessly. Anyone else here has encountered this issue?