I was up and running after install Roon last night. Tried to bring up the program and get the music going, and my DAC has disappeared from the network devices option.
My setup is Roon Core (on Mac OSX 10.11.6), QNAP NAS (library) linked via ethernet cable to router, and router to PS Audio Directstream via ethernet cable.
I have turned on and off the PSA Directstream. Still nothing appearing on Roon.
Thanks for any help in getting back up and running.