Device in use cropping up again

I’ve got a non-Pro Devialet Expert 200 and, lately, I have been seeing “device in use” after months of not seeing it. I run a Roon Nucleus and everything is connected by Ethernet. The Devialet has its latest firmware as does Roon.

To be clear, a re-boot of the Nucleus software clears it up but I am wondering whether it’s a systems issue on the Devialet end that needs to be addressed.