ARC set up with Eero router

Roon Core Machine

Nucleus running 2.0 build 1128

Networking Gear & Setup Details

Eero mesh network

Connected Audio Devices

B&W Formation products, Node 2i, Pro-Ject Streamboxes (2), multiple Apple devices

Description of Issue

Cannot get ARC enabled on Nucleus core

I have attempted to follow the troubleshooting support, but admittedly I am not tech savvy and do not completely understand what to do. I have toggled the UPnP setting on and off, and also tried to set up port forwarding to port 5500. I don’t really know what I’m doing or understand it. Does anyone else have an eero router and successfully set up ARC?

Hi Al,

Friendly Fellow Forum user here. Can you provide some additional information in the form below so that Support can assist.

What ISP do you have? It looks from your screen shots that there is a double NAT of some type going on, either with two routers in your network, or, because your provide is using CGNAT.

If the former, you would need to set one to bridge mode. If your ISP is using CGNAT then you would need to contact them and see if you can get a static IP.


  1. Who is your internet service provider?

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

  3. Do you have any additional network hardware, like additional routers or managed switches?

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

  5. What machine are you using as a Roon Core, and how is it connected to the internet?