2013 Mac Pro, Big Sur, 16GB of RAM
Well it would be a few Sonos, another TEAC, ATV etc…
All worked seemlesly for years, yesterday i swapped routers (!) for a new one, came to ROON and the Audio devices list is empty. Rebooted and so on… Nothing. Nothing on the network and indeed the TEAC UD-501 connect via USB is missing. Everything is missing.