Demand dial connection behind NAT+Port Forwarding

Question

I tried to setup a Demand Dial Connection between 2 Servers (2019 or below).

Both of them are behind another router in different Private Subnets (Microsoft Server again) with NAT enabled.

There's a problem with L2TP + NAT so I decided to go For PPTP Protocol and I forward the PPTP port on Both NAT Servers to the Demand Dial Servers.

The problem is only one demand Dial Connection works at same time, the other one errors.

Firewall is Turned off both on Demand and Nat Servers.

All the servers are Microsoft Servers 2019 or below.

Here are some screenshots :

here is the video of the problem too :

https://www.mediafire.com/file/yrf0hcveakh266x/Tshot.mkv/file

Answer 1

Hi,

Thanks for posting in Q&A platform.

Please understand, due to the environment limitation, it is hard for us to reproduce and analyze this behavior in our lab. If this issue is urgent, I would suggest you contact Microsoft Customer Support and Services where more in-depth investigation can be done so that you would get a more satisfying explanation and solution to this issue.

You may find phone number for your region accordingly from the link below:

https://support.microsoft.com/en-us/help/4051701/global-customer-service-phone-numbers

Best Regards,
Sunny

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