It’s a Linux computer, so could be standard computer problems. As recommended above, I’d reach out to Grimm or your dealer for help. They package Roon Core with the machine, so it’s all in their ballpark, I’d think.
Yes indeed. Grimm Audio package Roon Core with the MU1.
(Only had the thing for three weeks. No issues at all, playing for a few hours each day. Until Wednesday when I saw this error for this first time. Saturday was the worst, seeing this error only after playing 2 - 3 tracks.)
Network connection seems OK. Lyrics being pulled down each time next random track is selected. But tracks never play. Just get the dumb error message. So press Next track. New lyrics. Same dumb error message again. Audio never plays.