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Older versions of Windows used to be able to detect a UPnP-enabled router and expose it as an “internet gateway” where you can manage the UPnP port forwarding assignments.

What happened to that functionality in Windows 10? If it’s no longer built-in, is there a 3rd-party alternative?

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  • When I open Windows 10 network environment I still see see those UPnP devices. Why do you think this feature has been removed?
    – Robert
    Sep 16, 2021 at 8:27
  • @Robert I somehow can't find them. Can you show me the steps?
    – Kal
    Sep 16, 2021 at 9:02
  • Make sure you have configured your network connection as "Private" not "Public". The devices just show without having anything to configure.
    – Robert
    Sep 16, 2021 at 9:06
  • @Robert My connection is already set as Private. And I also have Network discovery turned on already. I know that UPnP is working correctly on my Mikrotik router because, on the router's management UI, I can see other devices or services making port forwarding rules using UPnP.
    – Kal
    Sep 16, 2021 at 9:36
  • A router is always the “internet gateway”, no connection to UPnP.
    – harrymc
    Sep 16, 2021 at 10:12

2 Answers 2

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Manually managing UPnP port forwarding assignments is a feature of the past. Windows 10 has an API for that, so almost all applications nowadays open their own ports without user intervention.

If you have an older application and need to port-forward your own ports, the only built-in tool you can use is netsh with a syntax like:

netsh interface portproxy add v4tov4 listenport=4422 listenaddress=192.168.1.111 connectport=80 connectaddress=192.168.0.33

If netsh is not useful for your purpose, there are many free tools for opening UPnP ports on the router.

Here is a small list:

I have not used any of these tools and cannot recommend one above the others.

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  • Can you update how to specify nat router (which is relevant if behind several)?
    – David Jonsson
    Nov 29 at 20:45
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The best modern upnp port mapper in the year of 2023 is:

UPnP Port Mapper

It's the only professional portmapper there is, the other ones aren't.

Here is the download:

https://github.com/upnpportmapper/download

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