strange internet connection issue

#1
Hi.

I had this strange internet connection issue for couple of days. i have tried format and reinstall win 7 couple of time. my wireless connects to the home network. i can browse through IE or firefox i can do some of other internet related thing. but few things not geting internet: 1. activation. i have to activate through phone; 2. outlook 2007 using PRC over http. exchange will connect if i VPN back and we are using self signed certificate; 3. windows live messeger install program (the one will start with download the actual install pack) so not the offline install file. can't find internet in that program and always errors out.


just hoping someone can give me hand to find a solution.
 


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