Roon ARC 2 cannot sync with Core (ref#MCT4WO)

[paul.raffier]

Affected Product

Roon ARC

ARC Issue Category

Can’t sync with Core

Description of Issue

{
“ipv6_connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“ipv4_connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“86.aaa.bbb.ccc”,“actual_external_ipv6”:“2a01:ddd:eee:fff:ggg:hhh:iii:jjj”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“10.0.0.1”,“found_upnp”:true,“error”:“”}
}

Roon Core Platform

Nucleus

Roon Core Specifications

Roon Nucleus

Connected Audio Devices

Dac Teac Nt 503 connected USB

Home Network Details

Connected by Ethernet with Orbi 850

[Rugby (aka Daniel or Big Dan)]

Hi Paul,

Fellow user here. Who is your ISP? And, are you trying to sync over Wifi, or over Cellular?

[benjamin]

Hey paul.raffier,

Ben with the support team here, thanks for writing in! A recent diagnostic report from Arc is pointing at CG Nat being active within your ISP, which is blocking Arc from properly shaking hands with your core device.

As a next step, please test out disabling IPv4 and see about reconnecting.

Let me know if your router settings match that with the link I’ve shared above. Thanks Paul! I’ll be on standby for your reply.

[benjamin]

Hey Paul,

I wanted to check in on this thread and see if you were able to run through the reply above?

I’ll be on standby for your reply, thanks!