Vista Enterprise and failed PPTP VPN

Posted on 2007-07-23
Last Modified: 2011-03-17
I have one Vista laptop that refuses to connect to a PPTP VPN connection.  An exact same model laptop with Vista on it connects just fine and a separate desktop from home can connect as well so I know it is not a setting on the Cisco VPN 3008 concentrator.  Using the built-in Windows VPN client with all default settings.  Firewall has been turned off to try to get this connection up and running and still no go so I don't think it is blocked ports or protocols.  

If I attempt to connect with default options, it just waits at the "Connecting to" screen and never acts like it connects even though to try to authenticate my username and password.  I have these entries in the event log:

CoID={A28CFFD9-68D6-4AD4-B813-816E40F86F56}: The user Domain\User has started dialing a VPN connection using a per-user connection profile named VPN Connection. The connection settings are:
Dial-in User = User
VpnStrategy = PPTP then L2TP
DataEncryption = Require
PrerequisiteEntry =
CompartmentsEnabled = No
AutoLogon = No
UseRasCredentials = Yes
CustomAuthKey =
AuthRestriction Mask = 0x00000200
RasIpv4DefaultGateway = Yes
Ipv4AddressAssignment = By Server
Ipv4DNSServerAssignment = By Server
RasIpv6DefaultGateway = Yes
Ipv6DNSServerAssignment = By Server
IpDnsFlags =
IpNBTEnabled = Yes
UseFlags = Private Connection
IpSecFlags = No Pre-shared key
ConnectOnWinlogon = No.

CoID={A28CFFD9-68D6-4AD4-B813-816E40F86F56}: The user Domain\User is trying to establish a link to the Remote Access Server for the connection named VPN Connection using the following device:
Server address/Phone Number =
Device = WAN Miniport (L2TP)
Port = VPN0-1
MediaType = VPN.

CoID={A28CFFD9-68D6-4AD4-B813-816E40F86F56}: The user Domain\User dialed a connection named VPN Connection which has failed. The error code returned on failure is 800.

I have attempted changing the options in the VPN from "Type of VPN" Automatic, to PPTP only and then the error code changes to 609 which means "The device type does not exist."  The other two Vista machines do not need this setting changed.  

I have tried using my LAN and Wi-Fi connection and both fail.  I need some help troubleshooting this.  I hate to reload Vista just for this problem but I need to be able to work remotely or the laptop has no advantage.
Question by:Eagle6990
    LVL 3

    Expert Comment

    I think the 800 error is an unreachable error..have you tried to disable the windows firewall and any other ones?
    LVL 8

    Expert Comment

    What are you using for a router/firewall at the location where the VPN connection is failing?  Can it handle VPN pass through?
    LVL 17

    Author Comment

    All firewalls have been turned off.  I can ping the VPN address from wherever I am just fine so I know it can locate it. I have tried connecting from home, where I have another Vista machine that works fine, as well as public WiFi locations and my parents house.  I've even plugged directly into the Internet on an outside port at work so I'm just one IP address away from where I want to be. Since other machines work, I don't think it is a setting on any routers or firewalls but something inside this machine that is messed up.
    LVL 17

    Author Comment

    One thing I just found that was different between my laptop and a copy of it with Vista was the device.  If I go to the Network Connections page, I see that my device is "Device = WAN Miniport (L2TP)"  but the other laptop shows "Device = WAN Miniport (PPTP)"  I never get prompted for which one I want to use.  Anyone know how to change this to the PPTP WAN miniport?  Maybe that will fix it.
    LVL 17

    Author Comment

    Please close this question as a PAQ.  I found out that if you have Virtual PC 2007 installed on Vista, then PPTP no longer works.  Uninstalling VirtualPC fixed the problem. No response from Microsoft about this.
    LVL 1

    Accepted Solution

    PAQed with points refunded (500)

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