Hi Allen. I just created a Talk about Homekit woes:
That reminds me that I had to fix a Homekit problem (due to a wifi router change) by disconnecting the ethernet from the Apple TV so that it connected by wifi. I plugged the ethernet back in and everything worked but maybe that triggered my problems (after several weeks of no problems)?
Anyway, the relevance to this thread is that maybe Apple didn’t fully test tvOS16 with the ATV connected by ethernet because they are dropping the ethernet port from the forthcomimng ATV?