Bryan
09-15-2008, 10:41 AM
Error 800: Unable to establish the VPN connection
The VPN server may be un-reachable, or security parameters may not be configured properly for this connection.
One of the most common errors encountered when working with a VPN is error 800, Unfortunately this error code doesn't tell you anything of why the connection is actually failing. If you encounter it, check the following:
* Is your network firewall blocking VPN connections?
Port 1723 must be opened and Protocol 47 must be enabled in the firewall configuration settings (make sure that any router/firewall in the VPN connection path is configured to allow protocol 47/GRE which commonly is referred to as PPTP pass through)
* make sure you can reach the VPN server by using ping. Sometimes, poor connection can cause this issue too.
* You may need to updated firmware on a router or firewall if other OS (win9x/nt/me/w2k) works except XP.
* Make sure no other secure software blocks your access, for example, Norton secure software.
* If you can establish the VPN from the desktop at home but not from the laptop. Make sure no security software like Microsoft OneCare software that blocks the GRE.
* Sometimes server has too many clients already connected (VPN server connection limit exceeded)? The server administrator can check this, but it is not a common problem.
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Thank you for using our service :)
The VPN server may be un-reachable, or security parameters may not be configured properly for this connection.
One of the most common errors encountered when working with a VPN is error 800, Unfortunately this error code doesn't tell you anything of why the connection is actually failing. If you encounter it, check the following:
* Is your network firewall blocking VPN connections?
Port 1723 must be opened and Protocol 47 must be enabled in the firewall configuration settings (make sure that any router/firewall in the VPN connection path is configured to allow protocol 47/GRE which commonly is referred to as PPTP pass through)
* make sure you can reach the VPN server by using ping. Sometimes, poor connection can cause this issue too.
* You may need to updated firmware on a router or firewall if other OS (win9x/nt/me/w2k) works except XP.
* Make sure no other secure software blocks your access, for example, Norton secure software.
* If you can establish the VPN from the desktop at home but not from the laptop. Make sure no security software like Microsoft OneCare software that blocks the GRE.
* Sometimes server has too many clients already connected (VPN server connection limit exceeded)? The server administrator can check this, but it is not a common problem.
-------------------------
Thank you for using our service :)