Home Basic - VPN 691 error

  • Thread starter Thread starter Rob
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Rob

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?
 
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
 
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.
 
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
 
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