No Airplay or Airdrop on MacPro 5,1 running Monterey (OCLP)

[Mac Hammer Fan]

I put a new airport card in my second Mac Pro. 300 MBPS. However, I only get 60. On my other Mac Pro, running Mojave 90. There, I can stream music to my Apple TV. But on the second Mac Pro, it doesn't work. When I activate Airdrop, it does not appear in the left bar of a Finder window either. I can't activate Airplay. A window opens: verify your network and Airplay settings.

Does anyone know any advice?
TIA

Monterey 12.7.6 and OCLP 1.5

 

[pullman]

Hmm could this have to do with the Monterey Home app no longer supporting the latest Apple TV – which one do you have? I have the Apple TV 4K and cannot connect from my cMP 3,1 (Monterey) via the Mac's Home app. Apple changed something a while back which upgraded the Home hub function in the ATV and left older versions of the Home app in the dirt. It's a guess on my part, but for instance when I select the ATV in Sys Prefs Sound – Output I get a message that I need to change the Home app's setting to allow "Anyone on the same network". And since the Monterey Home app cannot view my "Home" I can't change that setting.

Just a wild stab in the dark but hopefully it helps.

cheers
Philip