Easiest Solution If You Can't Browse (Internet)

Click Start / Run / cmd / Ok / netsh int ip reset c:\resetlog.txt / Enter / Restart 

the computer and try to log in and browse the Internet.

If the problem persists, continue using these steps.

Click Start/Run/cmd/Ok/netsh winsock reset/Enter/Restart Computer/ Also Reset IE to Default Options Click Tools/Tab Click Internet Options at bottom/Click Advanced Tab on far right Click Reset near bottom Click Ok and 

Close Internet Explorer  

                                                                                                             Vijay Ptlr