NetworkError due to Multiple NAT issues with defined IPs (ref#XQFVYX)

[Massimo_Molinari]

What’s happening?

· I'm having trouble with Roon ARC

What best describes your issue with ARC

· I can't log into ARC but I can log into Roon

How can we help?

· None of the above

Other options

· Other

Describe the issue

x{
"ipv4_connectivity": {"status":"NetworkError","status_code":504,"error":"error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined"},
"external_ip": {"actual_external_ip":"93.aaa.bbb.ccc","actual_external_ipv6":"null","router_external_ip":"100.ddd.eee.fff"},
"status": "status": MultipleNatFound
,
"natpmp_autoconfig": {"status":"NotFound"},
"upnp_autoconfig": {"server_ip":"192.168.1.254","found_upnp":true}
}

Describe your network setup

router fastweb nexxt one

[Wade_Oram]

The diagnostic text refers to an ip address starting with 100…

This suggests (but does not prove) that you ISP uses CG-NAT since ip addresses in the range 100.64.0.0 to 100.127.255.255 are reserved for that purpose.

If this is the case, your best option will be to ignore port forwarding (which cannot work with CG-NAT) and use Tailscale

Note: when you correctly configure tailscale, ARC will work but the ARC status in the Roon ARC settings page will continue to indicate “Not Ready” and the diagnostic text will still indicate an issue. This can be ignored.

[daniel]

Hi @Massimo_Molinari,
Thanks for reaching out to us about this issue. I agree with @Wade_Oram; Tailscale would be the best way for you to proceed. Please let us know if you have any questions about setting up Tailscale!