Very frustrated with this issue. I have searched here, and via google and can not come up with a real answer to the problem.
We have a network with 25 users on Laptops. We also have Windows 2003 server handleing all VPN connections and authentication. Everybody can connected using a PPTP VPN without issue, excpet 1 user. It connects, and then stalls while verifing user name and password, giving an error 721.
He uses TrendMicro Total Internet Security for AV & firewall. Windows firewall is disabled. I tried configuring the firewall, and even disabling it completely. Still doesn't work. I shut the software completely off, still no go. I have tried from a variaty of internet sources, wired, wireless, mobile broadband, from a variety of sources. I have basically varified that the problem is with the machine it's self, not a router, firewall or other external source. I still get the same Error 721. Does anybody have any tips or ideas to look at?