itunes now reports airplay device not compatible
I've been using a Denon receiver (AVR 2112ci) which has built in airplay to play music from my windows PC via itunes for years now. Recently I upgraded iTunes (12.8.0.150) and now I get the message: The Airplay device "Denon" is not compatible with this version of iTunes.
I have reset my receiver back to factory defaults, rebooted my PC, and windows updated my PC so that it is completely update to date. I have turned off my windows firewall. Nothing seems to matter.
My iPhone can use my receiver via Airplay no problem but it is running an old version of IOS (10.x).
In my reading it seems that something might have changed in terms of the airplay protocol that could explain this. Is that true? Am I out of luck on this?
null-OTHER, Windows 7