Issues with Roon Arc - Unable to connect to Roon Core

Roon Core Machine

Apple M2 Pro Mac Mini
Wired directly into Araknis switch

Networking Gear & Setup Details

  1. Who is your internet service provider?

AT&T Fiber

  1. Please list the make and model of your modem and router?

Modem: AT&T Arris BGW210-700

  1. Do you have any additional network hardware, like additional routers or managed switches?

Router: Araknis AN-310-RT-4L2W
Switch: Araknis AN-110-SW-R-8

  1. Does your network have any VPNs, proxy servers, or enterprise-grade security?


Connected Audio Devices

Description of Issue -

What is the exact port forwarding error message you see in the Roon Settings → ARC tab?

Roon ARC is not able to complete the test to connect remotely. I have confirmed that UPnP is enabled on the Araknis router. Here is the error I am getting:


“ipv4_connectivity”: {“status”:“NetworkError”,“status_code”:503,“error”:“”},

“external_ip”: {“actual_external_ip”:“”,“actual_external_ipv6”:“null”,“router_external_ip”:“”},

“natpmp_autoconfig”: {“status”:“NotFound”},

“upnp_autoconfig”: {“server_ip”:“”,“found_upnp”:true}


Hi @Steven_Zeisler,

Please try disabling OpenVPN and attempting autoconfiguration again. The error presented in Roon → ARC → Settings suggests it might be responsible here.

We’ll proceed from there. Thanks!

This topic was automatically closed 45 days after the last reply. New replies are no longer allowed.