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VPN Connection Problems with Windows 7

Posted on 2011-03-16
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Last Modified: 2012-05-11
Hello,

      I have a windows 2003 Server which has VPN configured. I have total 5 clients who access VPN.

The problem is now one of the employee got a new laptop with Windows 7 Ultimate. I configured VPN client on that laptop, but Its not working. I checked my firewall settings(Mcafee) and everthing seems to be fine. This particular client is able to access to VPN with his XP.

Can someone help me with this..
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Question by:AjithChowdary
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by:James
James earned 1600 total points
ID: 35146038
Are you receiving any error messages? Have you checked the Windows Logs on the Server?
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by:James
James earned 1600 total points
ID: 35146057
Check this from Experts Exchange and see does this provide any help.

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/Windows_7/Q_24538129.html
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by:bitla
bitla earned 400 total points
ID: 35146481
Try This

Uncheck  the IPV6 network properties and try. If still issue persists do the following steps

1.     Go to “Control Panel\Network and Internet\Network Connections”.

2.     Right-click the VPN connection and click Properties.

3.     Switch to Networking tab, click Internet Protocol version 4 (TCP/IPv4), and then click Properties.

4.     Click Advanced, click to select the Use default gateway on remote network check box, and then click OK.
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by:AjithChowdary
ID: 35148061
Yes, I get the error 619... Here is the log generated...
Remote-Access-Diagnostic-Report.mht
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by:James
James earned 1600 total points
ID: 35148628
On the VPN server do you have GRE protocol 47 open on the Router/Firewall? This needs to be open along with port 1723.
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Author Comment

by:AjithChowdary
ID: 35148771
Hello JBond,

       I'm kind of lost.. My VPN Server is configured on DC in My network which is assigned with a Public ip and cofigured to our mail server which acts as a gateway.I'm not sure where I have to enable GRE protocol. I tried checking under Routing and Remote Access, but couldn't located.

The firewall which we have is Mcafee software based. Should I configure this GRE  protocol on the firewall.

Thanks in Advance
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James earned 1600 total points
ID: 35148851
You need to open ports 1723 and GRE protocol 47, you need to open these on the WAN of the Router/Firewall ie: WAN - LAN and forward these ports onto the VPN Server's ip address.
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Author Comment

by:AjithChowdary
ID: 35149090
Yes... the GRE protocol is enabled on my router...I have no idea why its not working.. All the xp/Vista clients are able to access the VPN, except windows 7
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Author Comment

by:AjithChowdary
ID: 35153447
I managed to fix the problem. The problem is with Mcafee Firewall. I had to create policies for PORT 1723 and GRE protocol.

Thank you Jboond for the valuable infomration.

Thank you Bitla..

Ajith
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