ARC through SIM mobile receiver Continued

[Suedkiez (Just a fellow user like you)]

Hi, I am not support, but many people have circumvented CG-NAT by using a VPN, maybe you can find info here:

Tailscale implementation with ARC to circumnavigate ISP CGNAT

In case you are currently unable to use ARC because you can’t forward a port due to your ISP using CGNAT (Carrier Grade NAT). A free solution is available that should suit most Roon users via one implementation or another. The basis of the solution is that you run app on a machine in your local network which communicates with an app on your phone. The app on your local network creates a 'subnet router’ which allows your phone to behave as if it is still on the home network when you are mobile. …

Many other threads if you search for VPN and ARC