I'm a VPN novice, trying to run Cisco VPN client version 4.0.4 on my Dell M90 laptop, Windows XP professional, version 5.1, Service Pack 2.
The system was pre-configured for me by my company's IT people. We have a pretty large group of people who have used the VPN client extensively and without problems. But somehow when I try to do so, it usually hangs up at the "Authenticating user..." message, and doesn't prompt me for a username and password. It does work sometimes, but usually it doesn't, and my chances of success don't seem to depend on the network connection that I have, as it has both worked and not worked on fast connections and slow connections, wired and wireless.
So far our VPN server administrator has drawn a blank. I'm starting to think that there must be some compatibility problem that's preventing the VPN client from running properly on my computer. Can anyone think of one?