ARC forwarding issue

Roon Core Machine

Macbook pro Monterey 12.6 16 Go ram
Roon 2.0 build 1128

Networking Gear & Setup Details

Connexion by Ethernet on a router Huaweil B525 (box 4GHome from Orange)
Orange has a specific interface for this router I think
ISP Orange in France
no VPN

Connected Audio Devices

Cambridge Roon ready
it’s ok

Number of Tracks in Library


Description of Issue


I wanted to try ARC system, on my iphone app it’s ok
But when I want to make automatique configuration of Roon ARC on Roon server, it’s failed.

“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“”,“found_upnp”:true,“error”:“Did not find UPnP service with WANIPConnection on network”}
I try to read support and do manually, make a dyndns IP on the router, disable firewall, bitdefender and so on, I cant get a good test.
Not too much choice on this router by Orange

May be can you help me with the log I copy above. Tell me if you need some more information.

Thanks a lot for your help.
Best regards.