Roon ARC Connection Failure After ISP Change (ref#OW13KT)

Support ARC: Port Forwarding Help
1

Network Setup

· My only router was provided by my ISP

ARC Status

· ARC is *Not Ready*

Roon Error Code

· None of these are listed. It simply says "TIMEDOUT" or similar.

System or third-party *firewalls *or *antivirus software* can sometimes block RoonServer from reaching ARC.

·
Try adding RoonServer and its associated processes to the whitelist of any firewalls or antivirus software you have installed, including the Windows system firewall, if applicable.
[You can learn more about firewall exceptions with Roon here.](https://help.roonlabs.com/portal/en/kb/articles/firewall)

Has the status in Roon -> Settings -> ARC changed after adding exceptions in your firewalls and antivirus software for Roon?
ARC is still *Not Ready*

Don't give up yet.

· I'm stuck. I'd like to create a post to ask Roon Community for help.

Describe the issue

Can't connect to Roon Arc after switching internet providers and replacing modem. Prior to this Arc was working fine. Error message is:{
"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":"121.hhh.iii.jjj","actual_external_ipv6":"2403:aaa:bbb:ccc:ddd:eee:fff:ggg","router_external_ip":"null"},
"status": "status": MultipleNatFound
,
"natpmp_autoconfig": {"status":"NotFound"},
"upnp_autoconfig": {"server_ip":"192.168.20.1","found_upnp":true}
}

Describe your network setup

ISP - Aussie Broadband, NetComm NF20MESH router, Roon Nucleus as core, Gigabyte ethernet wired connection.

2

Looks like this is part of your problem:

Start here (there is a section on “MultipleNatFound” :

And also look here for another possible solution:

3

Thanks. That’s helpful. Looks like my new ISP has CG-NAT in place which could be what’s causing the problem. I’m going to see if I can opt out of it.

1 Like
4

Hello @Mark_Higgins1 ,

If you only have one router, then it does sound like you are in a CGNAT situation. Yes, Tailscale can help in these kinds of cases, let us know how it goes!

5

So, the opt out from CGNAT seems to have fixed the connection and auto configuration problem.

Status is showing as ‘connected’ in Roon Arc so hopefully everything is resolved :crossed_fingers:.

2 Likes
6

Hey @Mark_Higgins1,

So glad to hear you were able to sort it out! Certainly, let us know if you continue to run into issues moving forward. Thank you!

7

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