Windows 10 connecting to an L2TP VPN Server that is behind a NAT

If you are on Windows 10 and are trying to connect to an L2TP server behind a NAT, then you will find that it will not work due to how Microsoft has set up their IP stack. If you are on a Mac then it will work ok, but not on any version of Windows and a change is needed in the registry according to the below link:

https://support.microsoft.com/en-gb/h...

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