· None of the above quite fits
· None of these quite match
· New Nucleus One, can’t restore from backup or load library.
· FIOS cr1000a connected by Ethernet cable, no extenders or mesh.
Don’t know why Nucleus is identified as iMac, or why both show up when supposedly iMac was deauthorized earlier.
It appears that things are working properly now, for no good reason than trying the same things over and over again until they finally worked.
I drag-and-dropped my downloaded files from the old iMac to Nucleus Internal Storage and deleted the old ‘watched’ folders. I think that’s going to keep me content for this evening.
I’m glad to hear you’ve managed to get your Nucleus up and running normally!
Since a few days have passed, I wanted to ensure things are still performing properly for you. We’ll be monitoring for your reply, thank you! 
Things seem to be going well, thank you Benjamin. I was even able to get Tailscale installed and running and was able to enjoy ARC without interruption for the first time on a short road trip today.
I’m sure I’ll have more specific questions as the days go on but at the moment I’m happier with Roon than ever before. 
That is most excellent news @Stephen_Garrison - we’ll be here to help whenever you may need it!
Happy listening 
