White screen issue on Mac mini M2 Pro and iPad after rebooting Roon Server (ref#S7SRQK)

Hi! What’s not quite right with Roon?

· Roon is slow, freezing or won’t start

Roon is slow, freezing or won’t start

· Roon won’t start up at all

Tell us what's going on

· Running Roon Server on Mac mini M2 Pro with Tahoe V26.3.1
Had switched off the Mac mini for a few days and now when trying to login, it tells me that I am already logged in to a server and should click the "go back" button on the top left.
Then I get the white screen on Roon with the animated speaker symbol and nothing is happening. Quitting and restarting does not make a difference.
Interestingly I get the same white screen on the iPad which I use to control the music playback. No message. No "looking for Roon server". Just white screens.
I also rebooted the Mac, same thing happened

Tell us about your home network

· I am using a ubiquity UAP AC Lite as WiFi main station, connected to the router. Speedtest shows 207Mbps download anbd 22,7Mbps upload speed

Hello @steinege

Since you’re running macOS, the behavior you’re seeing is consistent with the newer, stricter Local Network permission controls in the recent macOS releases.

Please try the following steps:

  1. Open macOS System Settings → Privacy & Security → Local Network
  2. Make sure Roon and Roon Server are both enabled
  3. Even if they are already enabled, please toggle them off and back on
  4. Fully quit Roon Server from the macOS menu bar / task bar
  5. Reboot your Mac
  6. After reboot, launch Roon again and check if the devices is avaliable again.

Please report back if the issue persists after these steps, and Roon Support will continue from there.

Thank you Carl!
With your help and multiple trials I ended up unauthorizing the ROON server on my Mac mini, and after that it worked again.
I had to try a lot of things but I believe the key items were:
first, Roon didn’t show up in the Setup - Privacy & Security - Local Network
rebooted the Mac mini
Opened setup, …. Local Network
started ROON
Roon appeared in Local Network - granted access
Rebooted the Mac Mini
Started Roon - chose to unauthorised the Mac Minin as a Roon Server
Afterwards it worked

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