I haven´t been using Airplay before i got my HomePod.
I didn´t work with the HomePod, then I tried to Airplay to Sonos, and it didn´t work either.
And then I gave up on Airplay, and just played to Sonos via Sonos network.
And didn´t use my HomePod at all.
So Airplay have not worked from start.
Roon Core is running on my Dell Laptop (Latitude 5400, Intel® Core™ i5-8265U CPU @ 1.60GHz/1.80 GHz, 8GB RAM.)
Sometime direct connect via Lan to the first router, and other times via Wifi.
Roon 1.8 (783) 64bit.
Remotes are IOS devices iPhone 11 Pro and iPad Pro 12,9 (2. gen), latest version of Roon 1.8(783), and IOS 14.4.2.
Network is Fiber 500/500.
Fiber modem is in Bridge mode.
Router is Airport Extreme (6.th gen), extendet by another Airport Extreme (6.th gen) and a Airport Express (AC model 2.th gen).
Not in any way spotty wifi, 1 plan house 1442 square feet.
I have 2 Sonos One´s and 1 HomePod im trying to use via Airplay.
I have 2 Sonos Play1 and 1 Sonos Play3, since they are not Airplay devices, i use them via Sonos net.
I have a Sonos Boost to my Sonos net.
I have 1 Bluesound Node2, and 1 Bluesound Node2i, using RAAT.
I have no local library, I only streaming using Tidal and Qobuz.
I have no major problems with dropouts on my devices, most of the time it works.
It is “only” AirPlay that don´t work.
I have been trying disabling IGMP, didn´t change anything.
I have no problem using Airplay direct from my IOS devices to any of speakers, it is only via Roon it don´t work.