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Cannot Access Public Internet


I have win7 pro installed on a laptop. I can access the public internet on my home network but not when connected on my corporate network. When connected to the corporate network, i can access intranet sites with no problem and can ping public sites (like microsoft.com) but just can't connect using any type of browser (tried ie8 and safari). Other o/s's (xp/vista) work fine on the network and connect to all websites. Have tried 2 different installs of win7 pro, the first being the factory oem load and also purchased a shrink wrapped copy and installed from a reformat.

There was no change, still can't access public internet sites on the corporate lan. It does work fine though when i connect to the same lan from home using our vpn client. I've tried turning off the firewall including my av software (trendmicro) with no luck. Any ideas what is blocking my web traffic?


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