Roon ARC disconnected again, can't get back in

Roon Core Machine

Roon Nucleus Plus as core
Apple operating system iPad, iPhone,

Networking Gear & Setup Details

Apple AirPort Extreme, On WiFi/Ethernet

Connected Audio Devices

Ethernet from AirPort Extreme to Lumin X1… Ethernet from AirPort Extreme to 2nd Nucleus (non Plus model) as streamer, USB out to Massdrop Airist DAC…iMac as Roon endpoint via WiFi.

Number of Tracks in Library

12,208 Tracks in Library

Description of Issue

Getting “Not Ready” message when checking if I can use Roon ARC. “Roon ARC was unable to securely access your Roon Core.”

diagnostic data for Roon support.

“connectivity”: {“status”:“NetworkError”,“status_code”:502,“error”:“error: Error: connect EHOSTUNREACH, response code: undefined, body: undefined”},
“external_ip”: {“actual_external_ip”:“”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“status”:“NotFound”}

Welcome to the Roon community, @victordigby.

The diagnostics you’ve provided suggest that UPnP is enabled on your network, but your router is refusing the connection. This is either the result of UPnP not being enabled properly on your router, or settings at the level of your internet service provider.

First, to confirm the issue is not with your local network setup:

  • 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, we recommend reaching out to your internet service provider and passing 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?
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