Linksys mesh and Roon Arc

Support ARC: Port Forwarding Help
1

Hello Fellow Roonatics.
I have been trying to make Arc work for a while now, so thought I would reach out again having struck out on Facebook.
I have a linksys velop fibre router and an M2 macmini

NAT is enabled
Port is setup to match the macmini ip address in roon settings. So is the ip

There are no VPNs or Firewalls that might be interfering

modem is not in Bridge mode

Any advice greatfully received.

Mike

2

@Michael_Evans1, please share the diagnostic message seen under Settings > Roon ARC. Thanks.

3

Hello Martin, many thanks indeed

{
“connectivity”: {“status”:“NetworkError”,“status_code”:502,“error”:“error: Error: connect ECONNREFUSED 193.ddd.eee.fff:55000, response code: undefined, body: undefined”},
“external_ip”: {“actual_external_ip”:“193.ddd.eee.fff”,“actual_external_ipv6”:“null”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.1.1”,“found_upnp”:true,“error”:“<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/\” s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/\“>\n<s:Body>\n<s:Fault>\ns:Client\nUPnPError\n\n<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">\n501\nPAL_UPNP_SOAP_E_ACTION_FAILED\n\n\n</s:Fault>\n</s:Body>\n</s:Envelope>\n”}
}

4

Add im

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ages

5

The diagnostics you’ve provided suggest that UPnP is not properly configured on your router.

Please first try the following steps:

  • Try to enable UPnP/NATPMP in the web administration interface for the router directly upstream from your Core
  • Try to manually open the port in your router’s port forwarding configuration
  • Make sure the IP/Port matches the Port listed in Roon → Settings → ARC
  • Check for any VPNs or Firewalls that might be interfering
  • Check if your modem is in Bridge mode

If you continue to experience difficulties, please tag the 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?
6

Hi Martin
NAT enabled
Port forwarding in place as you can see from screenshot
IP ports match
No firewalls operating (I have tried with them all on and off)
Not in Bridge mode

Router is a Linksys velop MX4200 router/modem. FTTP, fibre router
I have a HP switch
System is hard wired, wifi switched off on roon server
roon server is macmini M2
ISP = Airband
Definitely not bridge mode.

How do I tag support?

Many thanks again

Mike

7

@support will review your ticket next week.

I note that you have two routers: Linksys and FTTP. Most likely, you have a redundant layer of networking, i.e., double NAT or two subnets. Therefore, you’ll need to set up port forwarding in both: FTTP to Linksys, and Linksys to Roon core.

It would seem that your ISP provides a dynamic IP address; this is fine.

1 Like
9

I’m medium clear on what your setup looks like, hardware wise. I did some poking around on your ISP website. Looks like they supply a new cool router from Linksys (Linksys Velop MX4000 wifi 6).

I also saw airband.co.uk does do fiber to the home, cool!

What we want to find is your external IP address that’s somewhere inside of one of your network boxes. Hopefully the Linksys MX4000.

Find this IP www.whatismyip.com
Inside the Linksys MX4000, dig around in there and try to find it. Look for WWW connection, or the WAN ip address. Once you find it, it should match the IP address reported by whatismyip.com

This is the box we need to setup the Port Forwarding on. You should also be able to find the DHCP server in the settings, and see your computer hosting the Roon software.

What I’m trying to confirm here is that you don’t have a double NAT situation going on, and that we’re spending time setting up the Port Forwarding on the correct networking box.

The other thing we’re going to want to address is that if you have a dynamic IP address (unless/when that static IP comes in), you’ll want a way to find your home server even when that IP occasionally changes. I think your Linksys router has dyndns.com built in, but it’s a pay service, so let’s skip it. I’d use duckdns.org. Install it with these instructions specific to your platform
Duck DNS - install

You home will be something like mikeshouse.duckdns.org:50000

10

Hi @Michael_Evans1,

2 suggestions from my side:

    • When i look at the error message, i think UPnP is enabled in the router. When i am correct, please disable it in the router. Sometimes UPnP and a manual port forwarding isn’t working.

  2. When above still don’t work, please change the port number in the Roon App to ie. 44135. Some ISP’s block some ports.

Hope it helps.

Kind regards,

Maarten.

1 Like
11

Hi Maarten
Ports changed and Unpnp is disabled.
Please see screenshots.
Kind regards
Mike

12

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13

Were you able to find the WAN IP address in your Linksys settings? The “actual_external_ip”: 193.aaa.bbb.ccc isn’t any good.

If it turns out your ISP, airband.co.uk, only gives out these IPv6 addresses, there are options, but we’ll cross that bridge when we come to it. I want you to

  1. verify the WAN IP address on your router (this might be correct for your router firmware netgear wan ip )
  2. find your machine running the Roon Core in the DHCP clients page, also on your router

let’s keep pluggin’ away!

1 Like
14

I agree with @Rutherford, I think your ISP has implemented CG-NAT.

Please search this forum to find the questions you could ask your ISP. I don’t know them by heart.

Regards,

Maarten

15

Well let’s make sure. I still haven’t seen that WAN IP field in the router. Let’s make doubly sure before we do the next route.

1 Like
16

Hi @Michael_Evans1,

Here is some more information on how to check if your ISP has implemented CG-NAT.

https://www.remoterig.com/wp/?page_id=3494

If CG-NAT is a possible case, you could contact your ISP and ask the following questions (don’t made this up myself, just copied from @benjamin - Roon Staff: Technical Support).

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

Hope it helps.

Kind regards,

Maarten.

17

No… I have no idea how to find the WAN ip adress I’m afraid.

18

I have the WAN!!!

1 Like
19

wan 100.96.191.105

20

"If the router shows another WAN IP-address it’s NOT OK, the ISP is using CGN.

If CGN is in use the router often shows a WAN IP address like 100.xxx.xxx.xxx or 10.xxx.xxx.xxx.or 192.xxx.xxx.xxx."

21

@Maarten_Duits so my isp is using CGN