Error in ARC automatic configuration

Roon Core Machine

Windows 10, HP Notebook 15-bs027nl, Intel CORE3, 8 Gb

Networking Gear & Setup Details

Fastweb FASTGate router

Connected Audio Devices

Bricasti M3 with network card, Ethernet cable connection through TPlinks, which is connected to the router.

Number of Tracks in Library

ca 200

Description of Issue

Error message trying to configure ARC
{
“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“93.ddd.eee.fff”,“router_external_ip”:“100.aaa.bbb.ccc”},
“status”: MultipleNatFound
,
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.1.254”,“found_upnp”:true}
}

Welcome to the Roon Community

The error suggests you have CGNAT (carrier grade NAT).

A VPN is a workaround for this or you can alternatively contact your ISP and ask for a fixed/private IP.

Have a quick look here for VPN related info.

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