Issues Streaming AirPlay Music from M1 iMac to Apple TV 4K (Gen 4, HD & 2021)
Recently upgraded to the M1 iMac and I'm having issues streaming to my Apple TV 4K (latest 2021 model) and Apple TV HD (last Gen). I'm on macOS Big Sur 14.1. I can connect, but the connection frequently drops out. I've tried both resetting to factory defaults and also connecting via Ethernet. Interestingly enough, I have a couple Gen 3 Apple TVs that I use for music due to the optical audio port and a couple AirPort Express units, and those work just fine without dropping out. I can stream without issue from my iOS devices.
iMac Line (2012 and Later)