I made some further and intense investigations. Actually I have two differnt problems:
@Wayne_Fiala: with my M33 just the 88kHz samplingrate is not playing with roon and active Dirac! Sampling rate conversion in roon is my workaround there. The problem with 192kHz was still around.
The 192kHz rate was still giving me the message “slow content loading” not depending where the content was coming from (Local or Qobuz).
So I made test with different Roon core maschines, different switch ports, different librarys. At last I have factory reset my M33. Still the same problem. After all this exerience I have disconnect from ethernet und connected it wireless. And as weired as it sounds, everything was fine (exept the 88kHz Dirac problem).
I then saw that it must have something to do with the network connection via cable. Of course I have already changed the cables several times without success. The cable is only 5m long.
Then I took a cheap 8port Zyxel switch and plugged it between my Ubiquity US-8-150W and my M33. And like miracle, my problem was gone!
Conclusion: My Ubiquity switch does not work correckt with my NAD. Although the Ubiquity had no special configurations and works with many other devices (also BluOS and Roon) without problems.
strange…!?
@support: can you further investigate the NAD Dirac problem and Roon with some sampling rates, please!
Thanks!
André