You have to setup Internet connection.
To make the new connection follow these steps:
To do it you can point to the upper-right corner of the Windows desktop to get the Windows 8 toolbar. Select "Settings", then "Control Panel".
Or from the Start panel click the Desktop tile or press the Windows key on your keyboard. Then right-click on the Networking icon in the lower right-corner of the screen and choose "Open Network and Sharing Center" and go to the step 3.
or Network and Internet -> View network status and tasks page
If you are already connected to the Internet, the next window will let you know that you are online already. If this is the case then continue and click "Set up a new connection anyway".
At this time, you have created the Internet connection successfully. In the future, to connect to your Internet connection, please click the Desktop tile on your start screen. Click the Network icon in the bottom right, and then choose your connection name from the list of networks that pops up.