Windows 7 64 bit VPN issue on a Dell Vostro
Hi,
About VPN error 806, you can try these steps:
1) if you have a router/firewall, make sure you open TCP Port 1723, IP Protocol 47 (GRE).
2) make sure you can reach the VPN server by using ping. Sometimes, poor connection can cause this issue too.
3) You may need to updated firmware on a router or firewall.
4) The VPN server may not be able to get IP from DHCP for the VPN client. So, you may want to re-configure VPN host networking settings. For XP pro VPN host, go to the Properties of the VPN>Network, check Specify TCP/IP address and Allow calling computer
to specify its own IP address, and uncheck Assign TCP/IP addresses automatically using DHCP.
5) Make sure other secure software blocks your access, for example, if you use Norton secure software, you may need to add the remote client's IP so that the client can access.
6) If your VPN running on a Windows RRAS with NAT enabled, you may want to check the NAT settings.
Furthermore, this article may also helpful to you:
http://www.stevens.edu/itwiki/w/index.php/VPN_Troubleshooting
Hope that helps.
Regards,
Leo
Huang
Leo Huang
TechNet Community Support
February 15th, 2012 5:43am
Hi,
About VPN error 806, you can try these steps:
1) if you have a router/firewall, make sure you open TCP Port 1723, IP Protocol 47 (GRE).
2) make sure you can reach the VPN server by using ping. Sometimes, poor connection can cause this issue too.
3) You may need to updated firmware on a router or firewall.
4) The VPN server may not be able to get IP from DHCP for the VPN client. So, you may want to re-configure VPN host networking settings. For XP pro VPN host, go to the Properties of the VPN>Network, check Specify TCP/IP address and Allow calling computer
to specify its own IP address, and uncheck Assign TCP/IP addresses automatically using DHCP.
5) Make sure other secure software blocks your access, for example, if you use Norton secure software, you may need to add the remote client's IP so that the client can access.
6) If your VPN running on a Windows RRAS with NAT enabled, you may want to check the NAT settings.
Furthermore, this article may also helpful to you:
http://www.stevens.edu/itwiki/w/index.php/VPN_Troubleshooting
Hope that helps.
Regards,
Leo
Huang
Leo Huang
TechNet Community Support
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February 17th, 2012 9:41pm
Hi there,
I am having a problem connecting via windows VPN to a client. Here is just some background information :
1) The VPN works on a 32 bit windows XP machine that is on our work network.
2) The VPN works on a 64 bit Windows 7 machine that is on our work network.
3) The VPN settings I am using my machine are the exact same as the settings working on the PC's mentioned above.
4) The VPN works on a 64 bit Windows 7 that is not on our work netwok, both via a LAN connection and a 3g connection
THe only difference I have on my machine and others here at work, is that my machine is a Dell Vostro. There are a few people here at with the same Dell laptop, and they experience the same problem connecting.
The settings I use on my VPN are as follows :
1) All PPP settings are unchecked
2) Type of VPN = PPTP
3) Data Encyption = Optional Encryption
4) I have checked the following check boxes - CHAP and MS-CHAP v2
5) I have pinged the VPN Host and it is visible to me.
As I mentioned, these settings above do work, just not on my Dell for some or other reason.
If I try connect using these settings I get the following error :
Error 806:
a connection between your computer and the VPN server has been established but the VPN connection cannot be completed. The most common cause for this is that there is at least one internet device between
your computer and the VPN server is not configured to allow GRE protocol packets Verify that protocol 47 GRE is allowed on all personal firewall devices or routers. if the problem persists, contact your administrator.
I have visited the following link :http://blogs.technet.com/b/rrasblog/archive/2009/08/12/troubleshooting-common-vpn-related-errors.aspx
and have looked at both suggestions. The Ports mentioned are open. In fact my firewall settings and advanced settings are the exact same as those on a machine that can connect.
Any help will be greatly appreciated!
Thanks,
Quinton
February 18th, 2012 4:26am