Unable to use Roon ARC outside (ref#WMFCW3)

Support ARC: Port Forwarding Help
1

What’s happening?

· I'm having trouble with Roon ARC

What best describes your issue with ARC

· Other

Describe the issue

I can’t use ARC outside

Describe your network setup

Verizon router cr1000a connect to Archer ax11000 and my roon nucleus one connect to Archer
Thank you

2

I’m not Roon support however, the diagnostics you’ve provided suggest there is a redundant layer of network address translation preventing port forwarding.

This can either be at the local-network level (commonly as a result of two routers), or at the level of your service provider (in the form of carrier-grade NAT).

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: ISPs and Routers: List of Known Solutions and Workarounds

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.

More specifically, you can pass along the following questions:

  • Have you implemented carrier-grade NAT for my account level?
  • Have you fully implemented IPv6, or do you have IPv4 addresses available?
  • Can I request a static IPv4 address to support port forwarding?
  • Are there any ports you have reserved at the ISP level I should be aware of?

If you’re unable to locate an existing solution in our ARC: Port Forwarding Resources subcategory, please reach out to the Roon support team and include the following information:

  1. What is the make and model of your modem and router?
  2. Do you have any additional network hardware, like additional routers or managed switches?
  3. Who is your internet service provider and what is your geographic region?
  4. Is your Modem configured in Bridge Mode so that it operates only as a modem or do you have the ports forwarded on both?
3

You have two routers in your local network so uPnP automatic configuration cannot work.

Fundamentally, you have four ways forward with port forwarding. The first two may or not be possible depending on your router and your ISP and your ISP connection

  1. Disconnect you Verizon router and connect your Archer AX11000 directly to your internet line. This may not be physically possible if your internet line is not ethernet (or fibre with an ONT). If it is possible, you will have to find out what router settings to use to manage the Verizon internet connection.

  2. Configure the Verizon Router as ‘Modem Only’ or ‘Bridge’ mode. This will mean that the only device performing Network Address Translation (NAT) would be the Archer AX11000. This may not be possible if the Verizon Router does not support ‘modem only’ or ‘bridge’ modes.

  3. Configure the Archer AX11000 as an access point mode. This will mean that the only device performaing NAT would be the Verizon router.

  4. Configure explicit port forwarding on both routers. uPnP will not work. On the Verizon Router, configure a port forwarding rule to forward TCP connections on the ARC port (55002) to the WAN side ip address of the Archer AX11000. On the Archer AX11000, configure a port forwarding rule to forward TCP connections on the ARC port (55002) to the ip address of the Roon Server (192.168.0.192). Because both of these rules involve the use of explicit ip addresses, it would best it you arranged that the ip addresses do not change. That is best done by setting up DHCP ip address reservations in both routers.

As an alternative to the use of port forwarding, you could, instead, elect to use Tailscale.

4

Hi @Gennady_Berdichevsky,

Just to clarify, what is the operating system you’re using to host RoonServer here? The diagnostics we can see refer to a Windows-hosted RoonServer rather than a Nucleus (RoonOS).

If you are using Windows, then installing Tailscale is a simple solution for remote access with ARC.

Please refer to the link @Wade_Oram helpfully provided above for detailed instructions.

5

Thank you so much to everyone , I disconnected Verizon router and oh miracle, problem solved !

1 Like
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