Ok…router is an AARIS TM1602. Using a Mac mini feeding an Aesthetix Pandora Eclipse via USB. Internet works fine and I can listen to Qobuz off my phone but as of today cannot stream it to my system… Have had roon for over a year with zero issues.
I have unplugged and plugged back in and restarted the router, the Mac mini and the Dac. I have done this three times. Aside from the amplifier there is nothing else to turn off although I did turn the amp off as well. I am not IT savvy but can follow detailed step by step instructions. The screen I am stuck at says Choose Your Roon Core at the top and looking for roon core with the roon logo to the left of looking.
Do you have any other kinds of firewalls running on the Mac? Apps such as Bullguard / Little Snitch / McAFee / Kaspersky? If so, I would try temporarily turning these off as well to see if that allows a connection.
What is your router model/manufacturer? The AARIS TM1602 is a modem, not a router. I would check to see if you have “multicast routing” or “IGMP Proxying/Snooping” as an option in your router settings and try toggling this option. I suspect you have an issue with multicast based on the current setup.