1 of my 4 Apple TV's will not connect to a HomePod mini.
I have 4 Apple TV's, 2 Homepod minis and 7 Homepod (v1). 1 of the ATV's will not play to one of the HP mini's. I can see it in the list of available Airplay devices but it will not connect. TVoS is 16.6. I have reset, factory reset, rest and re-installed the ATV etc. etc. The ATV is 4K 2nd Gen A1842 (32Gb). All other ATV's will play to all Homepods.
Not sure what to do next!
TIA.....
Apple TV 4K (2nd generation)