Hi @Paul_Wells1,
Thank you for your post. The “Ready” diagnostic in Roon Settings → ARC indicates that the port is open to RoonServer from our external servers. You’re likely not encountering an external, unresolvable factor here, but rather something in the security profile of the router that is filtering/throttling that open port.
The first thing I would try is to uninstall ARC completely, restart RoonServer, then install ARC and go through the onboarding on WiFi once more. I know it’s tedious, but it will completely reset any cached information and give us a starting connection for troubleshooting.
The next step I’d try, temporarily, is to see if you can connect via cellular at home by disabling the phone’s WiFi after setting the G3100 Security profile to “Low”. If so, then we know that it’s the Verizon router filtering out the connection here. You can change it back to Medium, High, etc. after this test.
Some users, anecdotally, have worked around this by creating a manual port forwarding rule in the G3100. See this post for instructions, but please disregard this particular user’s step about the static IP address (it’s not relevant here). FIOS Router G3100 Port Forwarding Instructions (single-router setup)
We’ll follow up from there.