Network configuration issues preventing ARC connection (ref#K0V5A4)

[Stephen_Page]

Network Setup

· My only router was provided by my ISP

ARC Status

· ARC is *Not Ready*

Roon Error Code

· The ARC settings page says "Not Ready," but I can still connect to ARC via cellular data. I'm having another problem.

Describe the issue

{
"ipv4_connectivity": {"status":"NetworkError","status_code":504,"error":"error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined"},
"external_ip": {"actual_external_ip":"31.aaa.bbb.ccc","actual_external_ipv6":"null","router_external_ip":"null"},
"natpmp_autoconfig": {"status":"NotFound"},
"upnp_autoconfig": {"server_ip":"192.168.1.254","found_upnp":true,"error":"Did not find UPnP service with WANIPConnection on network"}
}

Describe your network setup

Standard bt/EE router

[connor]

Hi @Stephen_Page,

British Telecom has implemented carrier-grade network address translation on some of their residential-tier accounts.

This might not be the case for your account - I’d first try to enable UPnP. On most BT Hubs, this is under Advanced Settings >Firewall > UPnP. Make sure both “UPnP” is enabled.

Alternatively, you can set a manual port forwarding rule in the router firmware. This should be a TCP protocol rule pointing to the IP address and port listed in Roon Settings → ARC.

A third option is to bypass port forwarding entirely by installing Tailscale alongside Roon and ARC on your server and phone. Here are instructions relevant to your RoonServer instance:

Tailscale Setup Instructions: Linux RoonServer

Please let us know if this helps.