I can play and stream anything from NAS or Spotify via WiFi, but when I try to AirPlay from my Mac (latest official 10.11.6), iPhone or iPad (both on latest dev betas, but the behaviour was the same on official 9.3.4), I get 1-2s of audio followed by a crackle and then the sound stops completely. Monkeying with buffer size doesn’t seem to have any influence. I have no way to try out wired connection ATM.
TLDR - AirPlay via WiFi results in audio stopping after 2s
What to do?