Cg nat progress?

[Colin_Rogers]

Roon Core Machine

Networking Gear & Setup Details

1. Who is your internet service provider?
   Ee via 4g in uk

2. Please list the make and model of your modem and router? Archer mr600

3. Do you have any additional network hardware, like additional routers or managed switches?no

4. Does your network have any VPNs, proxy servers, or enterprise-grade security?

No

Connected Audio Devices

Varioud

Description of Issue -

What is the exact port forwarding error message you see in the Roon Settings → ARC tab?

I get the multiple cghnat message.
Is there any progress on finding a fix for this. I have insufficient understanding of Tailscale to be willing to try that. I would like to access arc

[Suedkiez (Just a fellow user like you)]

@Colin_Rogers

I get the multiple cghnat message.

You mean the MultipleNatFound error? It would really help if you posted the “exact” port forwarding error message, so that there is no guessing. There is also more than one version of this message now. There is a copy button next to it and you can then paste it here

[Abrahams_Bogere (Abe)]

Some internet providers it’s not possible to go around this.

[t3kn0thug]

this has been the error I receive lately. ARC woorked fine for months and now recently this

{
“ipv4_connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“73.aaa.bbb.ccc”,“actual_external_ipv6”:“null”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“status”:“NotFound”}
}

Any solutions as this is a new to me after months of hassle free ARC riding.
No changes to hardware or ISP

[Suedkiez (Just a fellow user like you)]

This simply looks like UPnP not being enabled:

@t3kn0thug

“upnp_autoconfig”: {“status”:“NotFound”}

From the help:

from:

Port Forwarding Troubleshooting

Check in your router settings and enable UPnP if it isn’t. You can find the description here in the chapter 5. Make Xbox Online Games Run Smoothly by UPnP
in your router’s manual:

Archer MR600 V1 User Guide | TP-Link

Tell us if this doesn’t work

[t3kn0thug]

That message is with UPnP enabled. Initially I manually port forwarded, and all worked from release day until recently. Since getting this error message and ARC not working remotely I enabled UPnP on my gateway (UniFi USG) The only changes to my system during that period are updates for Roon Core Server and ARC with nothing on the hardware or ISP level.

[Suedkiez (Just a fellow user like you)]

@t3kn0thug

Since getting this error message and ARC not working remotely I enabled UPnP on my gateway (UniFi USG)

You hadn’t mentioned a separate gateway. In this, case, the port must be opened on the gateway as well, like you seem to have done. As this didn’t help, it might be this issue:

So try this:

[t3kn0thug]

I figured it out…

Comcast is my ISP. I use their gateway, but in bridge mode to be able to run my network config. Comcast recently reset my gateway which took it out of bridge mode and cause ARC to throw the Multi NAT error. I put the Comcast gateway back into bridge mode and now there is only one NAT in control of the network.

Thank you for the time and advice, believe it or not your last message pointed me towards my Comcast gateway.

[Suedkiez (Just a fellow user like you)]

Sometimes poking in the dark can reveal the right path. Glad you figured it out, I hope it keeps working