Internet browsing fine, online games crash net instantly?

Can't figure this one out, IE is now faster with my comp than it was with vista, but CS:S, Crysis Wars and CoD4 crash right after I connect to a server. I've tried disabling the firewall(made sure all the programs were under the list) and seemed to have no effect. Using the auto repair tool fixes the problem and returns a default gateway unavailable or a DNS error.

well, i have a similar problem, all just go fine.. except the online games. I have lag. like lag spikes and i cant play like before. Dont know what this could be...trying to someone to help me.

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