Roon ARC sees content but fails to play music due to port forwarding issue (ref#AUS81H)

Support
1

Network Setup

· I use a single personal router not provided by my ISP

ARC Status

· ARC is *Not Ready*

Roon Error Code

· None of these are listed. It simply says "TIMEDOUT" or similar.

System or third-party *firewalls *or *antivirus software* can sometimes block RoonServer from reaching ARC.

·
Try adding RoonServer and its associated processes to the whitelist of any firewalls or antivirus software you have installed, including the Windows system firewall, if applicable.
[You can learn more about firewall exceptions with Roon here.](https://help.roonlabs.com/portal/en/kb/articles/firewall)

Has the status in Roon -> Settings -> ARC changed after adding exceptions in your firewalls and antivirus software for Roon?
I don't have any system or third-party firewalls or antivirus software.

Have you successfully located and enabled the UPnP or NAT-PMP settings in your router's web UI?

· I've turned UPnP/ NAT-PMP on and ARC won't connect

Select the Diagnostic Keyword or Text String

· Something else

Don't give up yet.

· I'm stuck. I'd like to create a post to ask Roon Community for help.

Describe the issue

Roon ARC used to work but now doesn't play music but does see the contents. Says port forwarding issue but the right port is open on the router.

Describe your network setup

VFAST, Linksys Mesh. Nucleus

2

Can you post the diagnostic output from Roon settings/ARC page? You should be able to “copy” it on that page and paste it into a post.

3

Hey @William_Rowatt,

Thanks for writing in! @bearFNF makes a great point - it would be really helpful if you could share the specific error code you’re seeing in your Roon Settings> Roon Arc page.

With that, a few next troubleshooting steps for you to try:

  • Turn on UPnP on your router and try to run Roon's port forwarding test again.
  • Try to set up manual port forwarding in your router.
    • Make sure the IP/Port matches in any port forwarding rule you create.
  • Double-check to make sure you don't have any VPNs, Firewalls, or other network filtering software blocking Roon.
  • Check if your modem is in Bridge mode.
  • Restart your network hardware and update firmware.

Thank you!