@DDPS is correct. Roon on macOS has been partially broken since apple changed the network stack focusing on higher security standards in macOS Sequoia. Tahoe has just further exacerbated the issues between macOS and Roon and its desire for interactivity between the Roon Mothership and your Roon Server. Can’t see all the issues being resolved anytime soon, it is now over a year since I first started having issues on release of Sequoia. I did renew last year even though I had issues with losing endpoints after a restart but the further degradation in fundamental compatibility with Tahoe means I will not renew again. Instead I will continue to subscribe to an alternative player which does not suffer these issues and when faced with an integer mode problem with some USB DAC’s on Tahoe’s release, a patch was released in 2 days after reports came in and they had a production release fix in 4 days.
At the end of the day all I want to do is listen to music…..
My recommendation to anyone running Roon on a Mac is to downgrade to Sonoma (macOS 14) if the age of your Mac allows it. Sad but waiting for a fix which in my case started in September 2024 after the release of Sequoia can be an awfully long wait…….