We’ll need to know a little more detail in order to troubleshoot effectively here.
Please list any network equipment in your setup that isn’t included above, including managed switches and access points.
ARC connects to RoonServer on cellular data via port forwarding or Tailscale. If you have a
Is your RoonServer machine hardwired via ethernet? Windows, Mac, or RoonOS (ROCK) RoonServer machine, Tailscale might be the easiest solution for you. Please see here:
Please share any error screens you see within Roon.