Remote desktop via VPN

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redfn

Feb 20, 2018
2
0
20
I have a strange problem., and Im hoping someone can sheed some light on the matter, I have already tried TechNet without any success, they only link me to VPN setup guides.

Remote desktop works fine inside our LAN, I can connect to any machine.
However when I try and access it from at home via a vpn, I can only remote desktop the vpn/rras server.

The setup has been done on a windows 2012 r2 server by creating a standard PPTP vpn connection. all guidelines have been followed and access has been granted in the firewall.

FYI. I had it running perfectly on our old 2008 R2 server.
 
Solution
R
After several failed trials I decided to go into full troubleshoot mode, after analyzing the traffic and the various logs I finally manage to resolve the issue without the help of MS.

Besides following the usual guidelines for setting up VPN, there is a small detail mostly left out in these guides.

I will enclose the solution for others, so they dont have to put up with the lack of knowledge, I have found after posting this on several Microsoft Forums.

When your using a VPN connection to create an remote desktop connection to your work PC the RRAS (Routing and Remote Access Server) vill assign you a uniqe port number. That port number is between 49152 - 65535.

So in order for the remote desktop connection to work, you need to add...
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R

redfn

Feb 20, 2018
2
0
20
After several failed trials I decided to go into full troubleshoot mode, after analyzing the traffic and the various logs I finally manage to resolve the issue without the help of MS.

Besides following the usual guidelines for setting up VPN, there is a small detail mostly left out in these guides.

I will enclose the solution for others, so they dont have to put up with the lack of knowledge, I have found after posting this on several Microsoft Forums.

When your using a VPN connection to create an remote desktop connection to your work PC the RRAS (Routing and Remote Access Server) vill assign you a uniqe port number. That port number is between 49152 - 65535.

So in order for the remote desktop connection to work, you need to add that port range allong with port 3389, in your firewall allow list

Here is how it works, and the port numbers:

Home PC----3389---VPN ---3389---Company Router/Firewall---3389---RRAS---49152-65535---Work PC
 
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