For Windows 7 In the Start menu, click the “Control Panel” option. In the Control Panel click on “Networks and Internet” and choose the option “Check State and Network tasks”. Click the link next to "Connections" on the right. If you are using a wired connection, the link will be called "Local Area Connection", if you are using a wireless connection, the link will be called "Wireless Network Connection". Click on the "Properties" option. Select the item Internet Protocol version (TCP / IPv4) and right click on the “Properties” option. Select to use the following DNS server addresses and enter: Preferred DNS server: 8.8.8.8 Alternative DNS server 8.8.4.4 Finally, click "Ok" on this and the previous screens to save your changes. Windows 8 Enter the "Control Panel". In the Control Panel select the option “Networks and Internet”, click on “View the status and network tasks”. Click the link next to "Connections" on the right. On this screen, click "Properties". Select "Internet Protocol version 4 (TCP / IPv4)" from the list and click "Properties". Select the following DNS server addresses and type: Preferential DNS server: 8.8.8.8 Alternative DNS server 8.8.4.4 Finally, click "Ok" to save all changes. Mac OS X Go to "System Preferences". Click "Network". Click on "DNS Connection" and choose the one you want to change. The connection you are using will be indicated by a green light on the left. On the connection properties screen, click the "DNS" tab. Use the + or - signs to add or