VPN Trouble Error 721

[Apparition]

I am trying to establish a VPN server using a Windows 2000
Server box which is connected to the net via a NetGear
DG834 Router/Modem.

I have installed and configured the Routing and Remote
Access service, enabled access for the account I am using
in Active Directory, and created appropriate Firewall
rules to open the 1732 and 500 VPN ports for PPTP
communication. I have even tried turning off the Firewall
completely and following problem still occurs.

When I try to connect using a Win 2000 Pro client which is
using a dial-up connection, I get an Error message
721 "The remote computer is not responding".

There is nothing glaringly obvious in the access profiles
or authentication settings, I have tried using no
encryption and even no authentication and same problem
still occurs.

Any help on this would be greatly appreciated!

Thanks,

 

[Marc Reynolds [MSFT]]

You need to open TCP port 1723 (NOT 1732) and allow IP Protocol 47 (GRE).
You do not need TCP or UDP 500 open for PPTP.

--

Thanks,
Marc Reynolds
Microsoft Technical Support

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