Hey @mcvandijk66,
Welcome to the community! We’re happy to have you here. Thanks for the detailed notes as well. We were able to review a fresh set of Roon Server logs, and they told a clear story.
The good news is that your Roon account and login are actually working fine. Across your logs, virtually every login to our servers succeeded; the handful that didn’t were brief momentary hiccups right after your Mac starts up (before the network is fully ready) and a couple of temporary server-side blips on our end. So this isn’t a password or account problem, and you shouldn’t need the (account.roon.app) login page to resolve it.
What the logs do show is the real cause of your trouble: Roon Server keeps losing the connection to its own audio engine (RAATServer) shortly after your Mac boots. The reason is that your Mac mini’s IP address is changing between restarts, the logs show it appearing as both 192.168.178.22 and 192.168.178.62 on different startups. When the address changes, Roon Server tries to reach its audio engine at the old address, fails, and the zone drops out.
That’s exactly why searching for RAAT temporarily brings things back, you’re forcing Roon to rediscover it. It’s a good instinct, but you’re right that it shouldn’t be necessary, and the steps below should stop it from happening.
A likely contributor is that you have two routers in play (the Linksys and the Fritzbox 7530). That kind of setup can create two networks and unstable addressing, which is what we’re seeing here. I’d suggest, in order:
- Give the Mac mini a fixed address. In your Fritzbox, assign the Mac mini a static/reserved IP (sometimes called "Always assign this network device the same IP address"). This alone usually stops the drop-outs.
- Use a single network connection on the Mac mini. If both Wi-Fi and Ethernet are active, turn one off, wired Ethernet is best, so Roon binds to one stable address.
- Simplify the two-router setup if possible. Ideally only one device should be handing out IP addresses. Putting the Linksys (or the Fritzbox) into bridge/access-point mode so everything lives on one network will make Roon much more reliable long term.
On the separate issue, the "the default interactive shell is now zsh" window that appears when you switch on your Mac, that's a macOS message, not a Roon error, and it doesn't affect playback.
It usually means Roon Server is being launched at startup by a small script or Terminal command rather than the app itself. If you’d like, tell me how you have Roon Server set to start automatically (a Login Item, a script, etc.) and I’ll walk you through switching it to launch the RoonServer app directly, which makes the message go away.
Try the network steps above and let me know how it goes, happy to stay on this with you. 