Has anyone encountered this? I have a client vpn set up with my ISA server. It worked great and then I had to migrate it to a new server. Everything works well except: roughly half of my users can successfully connect to the vpn and the other half time out during "verifying user name and password" with error 721. I cannot find any similarities between those getting rejected. Some are dial-up and some are broadband. Some are W2k and some are xp pro. Same for the half that can successfully connect. Any ideas on what I can check? tia Chris