Roon ARC not working in car (ref#NETRLC)

Support
1

What’s happening?

· I'm having trouble with Roon ARC

What best describes your issue with ARC

· CarPlay / Android Auto issue

How can we help?

· None of the above

Other options

· Other

Describe the issue

Roon is working my house, but when I try to play in my car it doesnt work.

Describe your network setup

Modem from Xfinity, Eero router attached to this modem; just got Xfinity to upgrade this modem and ever since, I cant get Arc in car

2

{
“ipv4_connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“107.aaa.bbb.ccc”,“actual_external_ipv6”:“null”,“router_external_ip”:“10.0.0.3”},
“status”: “status”: MultipleNatFound
,
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.4.1”,“found_upnp”:true},
“multinat_autoconfig”: {“status”:“Failed”,“error”:“Router Control URL not found”}
}

This is what you see after it fails…

3

I would start here (there is a section on “multiple NAT found”):

And for some more light reading:

And if none of that works:

1 Like
4

Hey @Robert_Salz,

Thanks for writing in! @bearFNF is spot on with next steps in terms of what to read.

If your setup involves an ISP-provided gateway (modem/router combination) and your own third-party router:

  • In the web administration interface of the ISP-provided gateway (modem/router combination), enable Bridge Mode or equivalent, where the ISP-provided gateway does not have DHCP routing enabled. 
  • Alternatively, if you have already created a manual port forwarding rule in your 3rd-party router, you can add an additional rule to forward the port through the ISP/second router.
If you only have one router in your setup or your modem is already in Bridge mode, please take a look through our list of known router and internet service provider solutions, as other users may have already encountered the same situation: [url=https://community.roonlabs.com/t/routers-and-isps/203656]ISPs and Routers: List of Known Solutions and Workarounds[/url].

You can reach out directly to your service provider to ask if they support port forwarding; this question will often enough to prompt them to explain whether or not the carrier-grade NAT they’ve implemented can function with ARC.

The MultipleNAT error is not reported unless UPnP or NATPMP is working. Since these protocols configure port forwarding automatically, once you’ve removed the cause of the MultipleNAT error, port forwarding should automatically configure in Settings -> Roon ARC. 

5

I got a new modem from Xfinity. I forgot to bridge it to my Eero. I bridged, reset router, and Roon Arc now works. So bridging, resetting(turn off and on) made everything run smoothly. Thanks Robert

1 Like
6

Hello @Robert_Salz ,

Glad to hear that everything is working properly after bridging the Eero, happy listening!

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