I swapped out my home wifi router and now can’t get Roon ARC to work outside of the home. I verified UPnP is enabled and setup (the port forwarding record is present in the router config). Roon shows me this error payload:
{ “ipv4_connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error code: 504”}, “external_ip”: {“actual_external_ip”:“207.aaa.bbb.ccc”,“actual_external_ipv6”:“null”,“router_external_ip”:“null”}, “natpmp_autoconfig”: {“status”:“NotFound”}, “upnp_autoconfig”: {“status”:“NotFound”}, “multinat_autoconfig”: {“status”:“Failed”,“error”:“Router Control URL not found”} }
Which is odd considering it’s correctly adding the record in the router. I even tried manually adding the port forwarding record, but still not working.
Thanks for reaching out! Swapping routers is a classic trigger for Roon ARC connection hiccups. It is definitely strange that the UPnP rule populates in the router’s interface but still fails to establish a connection.
Since you mentioned trying to set up a manual port forwarding rule, let’s look closer at that configuration to make sure everything lines up perfectly:
Port Matching: When you created the manual rule, did you set both the Internal Port and the External Port to the exact same port number (the specific port listed in your Roon Settings → Roon ARC)?
Disable UPnP If you already set up manual port forwarding, you can try disabling UPnP
Router Configuration: Where exactly in your new router’s settings did you add this rule?
Screenshot Request: Could you please share a screenshot of the manual port forwarding rule you created? This will help us verify the IP address and port mapping. (Please make sure to also turn off UPnP in the router if you are using a manual rule, as having both active can cause conflicts).
As a quick side note: The 504 error and router_external_ip: "null" in your diagnostic data can sometimes indicate a “Double NAT” situation. If your new WiFi router is plugged directly into a modem/router combo unit provided by your ISP, you might need to put that ISP equipment into “Bridge Mode.”
Ok thanks for all the notes everyone. I was able to track it down to a few issues including double NAT with my cable modem / wifi router conflicting. After a bunch of factory resets, everything’s working now. Thanks for the help everyone.