Arc - Port Forwarding (UniFi Dream Machine Pro)

Support ARC: Port Forwarding Resources
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Does anyone have settings for a UniFi dream machine pro ?

UPnP enabled port forwarding enabled no luck

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UPnP does work (at least it did when I tested it months ago:

  • Under the configuration for the WAN interface
    • Enable UPnP
    • Then check the boxes for “NAT Port Mapping Protocol” and the local network for which you want to enable access
    • Save the configuration and it should be good to go

For static port forwarding here is an example of what the rule looks like:

Roon core is 10.10.10.25
The port configured in the ARC settings pane in Roon is 55001

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Here is my nucleus screen where are you getting the core ip?

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Is your dream machine behind a firewall from your ISP?

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Yeah, this appears to be a double NAT situation. What is your ISP and what hardware does the UDM Pro plug into?

Your forwarding rule does appear to be correct.

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I just figured it out:). had to put my ISP router in bridge mode.

Thanks for your help!!!

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Same thing happened to me.

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I’m already in Bridge Mode. Any other suggestions?

I have the non-pro Dream Machine.

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Does your Internet provider give you a public IP out do they CGNAT?

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I believe CGNAT. I checked my xFinity modem IP address and it is slightly different from what I see when I visit a what’s my IP address website.

Found the below article about xFinity and port forwarding and now wondering if others with xFinity are having problems?

https://www.purevpn.com/blog/xfinity-cgnat-port-forwarding/

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I have a unifi UDM Router and virgin hub in modem mode. I have enable UPnP and NAT on the UDM but still no joy. When you say you put your ISP router into bridge mode - did you therefore turn it back into a router rather than a modem? Therefore negating the UDMP as a router? Thanks - Just desperate to get this ARC 2 working!

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Try forwarding the required port on both your modem and Unifi Dream Machine. Its what I did on my modem and UDM Pro and it fixed the issue for me.

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Thanks Gary - this worked for me just now after hours of messing. Made no change to ISP modem/router - just set up this port forwarding rule in your screenshots - however I used the suggested port in my Roon ARC settings page… Now working so pleased!

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UDM pro user here. No other routers, just a fibre modem. Auto setup wouldn’t work despite UPnP and NAT mapping being enabled. Added a port forwarding rule as described here and instant success! Thanks.

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Same here, UDM connected with port forwarding.
But, I keep getting “Something went wrong while syncing to your Roon Core”
Any ideas?

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Do you have yours setup similar to mine?

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No, I have a ISP modem and then the UDM connected to it. With port forwarding the check box is ok, i can login to Roon Arc but then I get an error…

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I have a UniFi EdgeRouter 12.
I have port forward port 55000, and same port selected in RoonCore.
But get this diagnostic data:

{
“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“193.90.241.35”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“status”:“NotFound”}
}

I have tried different ports, but can still not get Roon ARC to work.
What can I do?

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A post was split to a new topic: Trouble Setting Up ARC