Dear
@harry925 , thanks for the info! I was away on holiday for a few weeks so I couldn't work on the issue. Unfortunately I still have the same problem. As the streamer worked flawlessly at the beginning, I can only suspect some software-related issue in my router or Arsy (updated a few times), or the switch is faulty. Cables seem to be fine (CAT 8), and my pc attached to the same switch reports 600 Mbits and ping of 8 ms, even after swapping cables... Must dig into the matter as soon as I have a little time again. Anyway, till now I suppose it is on the user side and not the side of the streamer. Supposedly buying a new switch could solve the problem..

Man, listening to music has become so much more complicated since it became digital! ;-)