Unable to AirPlay macOS Big Sur v11.6.2's Safari v15.2's streaming videos to an Apple TV 4K connected to a HDTV.
I managed to get this ATV (A1842 & MQD22LL/A; 5th gen.) to connect this over year old Intel 13" MBP's. Its mirrored desktop mode works so I can see both screens. However, I can't get Safari's streaming Chinese videos to show up on HDTV via ATV 4K. All I see is a blank black screen with its spinning buffering(?) animation. The Chinese web site doesn't have an iOS app so I have to use the web browsers (Chrome doesn't even have an AirPlay option like in Safari). Am I missing something? All softwares have the (new/lat)est updates. I had to use the mirror desktop and tell web browser's embedded video player to go fullscreen. :(
Thank you for reading and hopefully answering soon. :)
Apple TV 4K