Hi @Rumpole,
We’ve merged your report into the main tracking thread so you can receive updates on this issue.
Technical Support is investigating with QA and Development. We’re aware of broad reports of local device connectivity failures that emerged with the MacOS 15.0+ release. At this time we have not identified a precise failure mechanism within Roon. We will continue to investigate this issue and provide any and all solutions possible as well as broadcast known workarounds.
For now, please try:
- Retoggling Roon permission in System Settings → Privacy & Security → Local Network when networked Zones disappear
- Restarting RoonServer to rebroadcast device discovery
Thank you @David_Moore2 for sharing your research and additional context. The Roon team will follow up with updates as available.