I am running XP SP2 on my laptop. I use a Cisco VPN Client and a Nortel VPN Client to connect to various company servers. Recently, I installed Sun VirtualBox to test some other OS's and now when I try to connect to the Cisco VPN Client I get an error "Reason 442: Failed to enable virtual adapter".
It looks like it is going to work before the error occurs...it goes through the Negotiating Security policies step as well as the Securing Communications channel step, but then the error occurs.
The Nortel client works fine.