I have been having the same problem. Looking at the forum, there appears to
be a fair number of similar comments. Trying to connect to an XP machine. I
think SBS 2003 as well, but not sure.

"Antibiyotik" wrote:

> I have been using too. Vista final - Ultimate. There is no problem...
>
>
> "RMcCabe" <RMcCabe@discussions.microsoft.com> wrote in message
> news:0033A50C-2AFB-4205-B6A5-19F7A5FDFEEE@microsoft.com...
> > Has anyone had problems with Vista RTM's Windows VPN client. I've used it
> > for years in XP with no issues, but when I tried it with Vista Beta, I
> > couldn't connect to our office VPN which was a deal-breaker. I am
> > hesitant
> > to install the RTM release until I know that the Windows VPN is working.
> > Any
> > help, feedback, suggestions would be greatly appreciated. Thank you.
>
>