Roon arc ıp or port problem

Roon Core Machine

System Model NUC8i7BEH
System Type x64-based PC

Processor Intel(R) Core™ i7-8559U CPU @ 2.70GHz, 2712 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date Intel Corp. BECFL357.86A.0085.2020.1007.1917, 10/7/2020

Networking Gear & Setup Details

zyxel model rouyter====sotm switch=====sotm sms200ultra===deafrips venus dac

Connected Audio Devices

Number of Tracks in Library

Description of Issue

“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“xxxx”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“”,“found_upnp”:true,“error”:“Did not find UPnP service with WANIPConnection on network”}
roon core ip 55002 port

how can set up???
cemil alyanak

Hi @Cemil_Alyanak,

According to the error message, UPnP isn’t activate or available on your zyxel.

Did you read post:

If so please let us know what you have done already.

Kind regards,


As @Maarten_Duits points out, the port forwarding diagnostics you’ve provided suggest that UPnP is not properly configured on your router or not working correctly.

Please try the following steps in order:

  • Reboot your Roon Core and networking gear (router, modem, switches, etc.)
  • Try to enable UPnP/NATPMP in the web administration interface for the router
  • 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
  • Try to update your router firmware
  • Check if your modem is in Bridge mode and if not, try to place into 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?


1 Like

Hi Cemil,

Do you still need help with port forwarding?

Hi @Cemil_Alyanak,

Just checking in, as diagnostics suggest you might still be having an issue setting up port forwarding.

To echo the helpful suggestions from the Roon Community moderators above, please try enabling UPnP in your router web administration first. I also recommend installing the most recent version of Roon and ARC on your devices, as we’ve been making incremental improvements to sync and connectivity since you originally reported your issue.

Standing by if you need assistance.

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