Home Basic - VPN 691 error

Discussion in 'Windows Vista Networking' started by Rob, Jan 13, 2009.

  1. Rob

    Rob Guest

    I have a laptop running Vista Home Basic trying to create a PPTP VPN to a
    Firebox 700 firewall. Every attempt to connect results in a 691 error -
    username or password not valid. There are a number of computers running XP
    and one running Vista Ultimate that have no problem creating the VPN. Does
    anyone know of a reason that Home Basic can't/won't connect?
     
    Rob, Jan 13, 2009
    #1
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  2. In most cases, VPN 691 is security issue. Have you tried different username?
    Or this search result may help.
    VPN error code
    VPN error 619 - Case Study · Error 691 in RRAS after NIC changed ·
    Receiving VPN error 619 while connecting to a VPN via SBC ...
    www.chicagotech.net/vpnerrors.htm


    --
    Bob Lin, MS-MVP, MCSE & CNE
    Networking, Internet, Routing, VPN Troubleshooting on
    http://www.ChicagoTech.net
    How to Setup Windows, Network, VPN & Remote Access on
    http://www.HowToNetworking.com
     
    Robert L. \(MS-MVP\), Jan 13, 2009
    #2
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  3. Rob

    Rob Guest

    Yes, I have tried several usernames/passwords which I know are valid on the
    firewall. I've also done a number of searches but haven't turned up anything
    useful yet.
     
    Rob, Jan 13, 2009
    #3
  4. Rob

    GTS Guest

    I'm not familiar with that particular device, but some use the NTLM protocol
    for PPTP VPN authentication and have a problem with NTLMv2 by default used
    in Vista. The following registry change may help.

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa\LMCompatibilityLevel

    If the key doesn't already exist, create a DWORD value named
    LmCompatibilityLevel and set the value to 1,

    OR save the following lines to .reg files and run it.

    Windows Registry Editor Version 5.00

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa]
    "LmCompatibilityLevel"=dword:00000001
     
    GTS, Jan 13, 2009
    #4
  5. Robert L. \(MS-MVP\), Jan 14, 2009
    #5
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