Urgent: Cant't see my network devices anymore after update

[Suedkiez (Just a fellow user like you)]

Try this:

Connection issues with Roon Remote on macOS 15 after upgrade (ref#P2PLSV)

macOS 15 messed up security settings for quite many people. Lots of threads about this on the forum. Try this, it usually helps: Navigate to macOS System Settings > Privacy & Security > Local Network , and make sure Roon is allowed. If it is already enabled, toggle it off and on again. Then reboot your Mac, and see if the same issue persists.