OK here is my situation which nothing has worked yet. I did the research too on this and came up with the same winsock stuff as well. Here is my setup and see if anyone has the same and can shed some light on this odd one.

OS : Windows XP Professional/Corporate
Router: SMC Barricade that goes to a Linksys Router
Both routers have the newest firmware upgrades
OS Updates : Fully installed and are all updated

Nothing works and I cannot even connect to a server for over 4 messages before I am disconnected. I have tried using all different types of software but all say the same thing. Ok so what is happening? I would love to get a resolve to this because it just started happening from going to Windows XP Home to Pro. So is there something I am missing with the upgrade? Thanks for your time!!