I would like to share that prior to upgrading the Nucleus One memory, I had been having audio dropouts and Roon losing visibility of my Totaldac Streamer.
I have been struggling with this issue with a small collection of 400 albums and 4000+ tracks so I did not initially suspect Nucleus One to be the culprit. I dont use any dsp or multi-room zones and library background audio analysis is scheduled. I had gone round the mulberry bush checking the Totaldac d1-streamer (which worked fine with CD input) but drops when streaming with Nucleus One. Upgraded my network switch as well, thinking that the network was probably the issue.
So the last thing I did, was to upgrade the 4GB ram to 16GB. That did the trick.
So, my two cents, is that the Nucleus One memory of 4GB is seriously inadequate and if you are getting dropouts, upgrading the memory would be a possible solution.