Hi @Guido_Heller, @Frank_Gottschalk and @Thomas_Veit,
I’m very sorry Roon ARC isn’t working at your side.The problem Roon Arc isn’t working is because of MultipleNAT.
Did you all checked this part of the Roon ARC documentation?
If you still encounter problems after reading the documentation, could you please answer the following questions:
- Who is your internet service provider?
- Please list the make and model of your modem and router?
- Do you have any additional network hardware, like additional routers or managed switches?
- Does your network have any VPNs, proxy servers, or enterprise-grade security?
- What machine are you using as a Roon Core, and how is it connected to the internet?
With these answers, my and other community members can help you better.
Kind regards,
Maarten.