I was using the hotspot on my phone for the core, sorry for not making clear. This only occurs with Qobuz In Roon and not tidal in Roon and not Qobuz In the Qobuz application and is fixed for 1-2 hours restarting the core. IMHO this makes it a Roon problem and not a network problem. The behavior including error messages is similar to Tidal and Qobuz has stopped working, except that only Qobuz is affected and restarting the core temporarily fixes the problem. Is there anything in the Roon server side that could be causing this problem?