Roon Arc does not connect

Roon Core Machine

Nas synology ds918

Networking Gear & Setup Details

  1. Who is your internet service provider? Free

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

  3. Do you have any additional network hardware, like additional routers or managed switches? No

  4. Does your network have any VPNs, proxy servers, or enterprise-grade security? No

Connected Audio Devices

Mobile device

Description of Issue -

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

Port forwarding is 50002

“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“”,“actual_external_ipv6”:“2a01:e0a:AAAA:BBBB:CCCC:DDDD:fe94:ed12”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“”,“found_upnp”:true,“error”:“<?xml version=\"1.0\"?><s:Envelope xmlns:s="\” s:encodingStyle="\“><s:Body><s:Fault>s:ClientUPnPError<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">718</s:Fault></s:Body></s:Envelope>”}

Have you set a forwarding rule in your routers configuration?

It should look similar to this, but replace the 55000 port number with 50002 and the IP address with the IP address that Roon shows in the Roon ARC setup screen.

Here in my case Roon’s IP address is with port number 55000.

Hi @Xavier_GUERIN,

In the error message i see a External IPV6 address. As far as i know, Roon Arc isn’t supporting IPV6 at the moment. Can you turn it off on the router?

Kind regards,


Thanks for your reply.
Yes it is now off and arc is now working
All good

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