Hi @Frank_Borowski,
Is networking ever simple?
You have my apologies for not seeing what device you’re running Roon Server on, please be aware that the Silent Angel Rhein Z1 is not officially supported by Roon:
If you’d like to continue troubleshooting I’d be happy to assist with Roon Server running on your Mac. Once you have this setup running, please reproduce the issue and share the specific track name and timestamp.
Thanks!