Setting up TailScale

[brianballard85 0]

I have the same issue, I've set up port forwarding per the instructions but I'm recently found out that I have CGNAT. Trying to set up a WD PR4100 NAS to work remotely with Emby is becoming increasingly impossible. I continue going round and round with both Tailscale and Emby. I've even set up DNS and still no external access. 

[Luke 42077]

@brianballard85Hi, what have you done so far to setup Tail Scale? Where are you stuck?

[brianballard85 0]

I know it’s odd but I’d be more than willing for someone to remote into my computer just to get this going it’s frustrating. Nothing I’ve tried has worked and I don’t know how to fully explain. I’ve installed Tailscale, and then reading other posts I’m just left scratching my head. I’m not versed enough in doing this.

[Luke 42077]

@sa2000may have some TailScale tips.

[sa2000 673]

On 09/11/2025 at 16:35, brianballard85 said:

I've set up port forwarding per the instructions but I'm recently found out that I have CGNAT.

I have come across Tailscale being used and the local IP used by Tailscale vpn was one in the CGNAT range. Maybe that is what you have rather than a public / WAN IP from your ISP that is CGNAT

I would like you to get me the following:

If you have a windows PC on the same network as the WD MyCloudPR4100, do the following

- with tailscale vpn running, in a cmd.exe window, get the output from "ipconfig /all" - best to direct the result to a file, e.g.

   ipconfig /all > "%LocalAppData%\ipconfig-with-tailscale.txt"

and in a browser, enter url "http://api.ipify.org/" and note down the displayed IP Address

repeat these with tailscale vpn not running, so:

 - with tailscale vpn disabled, in a cmd.exe window, get the output from "ipconfig /all" -  e.g.

   ipconfig /all > "%LocalAppData%\ipconfig-without-tailscale.txt"

and in a browser, enter url "http://api.ipify.org/" and note down the displayed IP Address

You can send me the files and the 2 displayed IP Addresses in a private message

For the WD MyCloudPR4100, restart Emby Server, wait 5 minutes and then download the Emby Server logs and let me have that latest embyserver.txt log together with what Network Settings you have changed in the Emby Server settings

and one final bit of info, login to your router and see what the IP Address is shown for WAN - you can include that or screenshot with the info you will send me by private message

 

 

 

If you have a windows PC on the same network as the WD MyCloudPR4100 you are trying to configure for Emby Server, get and share the output from "ipconfig /all" in command line for when tailscale is running and also when it is not - so i can compare. Also in a browser, do a 

And for the Emby Server on the WD MyCloudPR41