Boot to your Windows (Windows XP, Windows 98, Windows 2000, Windows Vista)
Step2
Click on the start
Step3
Click on the run
Step4
In the run command type "CMD"
Note : Dont enter any quotes
Step5
There will be a black windows opened in front of you. In the black windows type "ping www.google.com"
Note : Dont enter any quotes
Step6
If you get the ping replies and you will also get Ping statistics Packets : Sent = 4 , Received = 4 , Lost = 0 (0% loss)
If the lost bytes are zero then the connection is perfect but if it shows that there is some loss means there is some problem in the connection as some bytes are getting lost