Windows 7 
❶ Click the icon    on the bottom right corner of your desktop. 
❷ Click Open Network and Sharing Center. 
 
Tip 
If you cannot find the icon    on the bottom right corner of your desktop, follow steps below: 
Click Start      > Control Panel > Network and Internet > Network and Sharing Center. 
 
❸ Click Local Area Connection > Properties.   
 
❹ Find and double click Internet Protocol Version 4(TCP/IPv4).