On your destop click on START click on RUN

Type in cmd then press OK

A black box will appear (command prompt)

Now type ping then the ip address of your opponent ex: ping 65.114.18.34 then press enter

Now your computer will determine how fast you can connect to your opponent, now remember the lower the ping the better the connection will be if a ping is 300ms that means it will lag like hell if its 150ms or less it will be a good connection.