I have 3 devices controlling my Muso 2. 2 months ago Spotify on one device (A) stopped locating the Muso 2. I could still connect to spotify from the other 2 devices (B and C) then control it from the device A so the problem is not the network. Then device B upgraded Spotify I lost ability to use Spotify Connect to find and use speaker from it too. I am not allowing Spotify to be upgraded on the device C so I am still able to use Spotify on Muso 2.
I have seen this error posted both on Spotify and here in Naim community but no solutions.