Issues with setting up Roon ARC

Roon Core Machine

M1 MacMini

Networking Gear & Setup Details

  1. Who is your internet service provider?

  2. Please list the make and model of your modem and router?
    Modem: Archer VR1600v Ver.2.0
    Router: Asus RT-AX88U with Mesh Wifi System

  3. Do you have any additional network hardware, like additional routers or managed switches?
    Mesh router extender: Asus RT-AX58U

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

Connected Audio Devices

NAD C658 attached to router via cable

Description of Issue -

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

After port forwarding set up, getting the following error

“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”:“null”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“”,“found_upnp”:true,“error”:“<s:Envelope xmlns:s="\” s:encodingStyle="\“><s:Body><s:Fault>s:ClientUPnPError<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">718ConflictInMappingEntry</s:Fault></s:Body></s:Envelope>”}

Hopefully someone more knowledgeable than myself will reply soon but I suspect your modem needs to be set to Bridge Mode.

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