For NT and upwards, only computers with accounts in the domain can actually log into the domain. You can browse the the domain if the computer's workgroup matches your network domain name.
I had a user experience the same problem, as did I. After connecting using VPN Client 3.5.1 from XP, we would lose our connection after 1 or 2 minutes. What I did to resolve this issue was to change the setting under the adapter properties authenti...