· 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 Not ready
Describe your network setup
Roon Service 20220216 ARC IOS 17.3.1 Roon macOS 14.4.1
If you’re encountering a multiple NAT diagnostic despite the TCP port forwarding rule, there is still a redundant layer of network address translation in the pathway somewhere. This can take the form of a second router, your service provider’s carrier-grade NAT, or in some cases, both.
You’re most likely behind a layer of carrier-grade network address translation (CG-NAT) on the part of your ISP.
The most expedient workaround here would be to install a proxy mesh peer-to-peer VPN like Tailscale directly on any non-RoonOS machine and the client phone itself. This is technically unsanctioned by Roon and an unofficial workaround, but it’s proven useful for users in your position. You can find specific instructions in Tinkering on this forum or on Tailscale’s website here.
