Download the driver here:

http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Third-Party+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+D101GGC

1st you check the Lan card driver is properly Installed.

• Go to the control panel
• Click on the System Icon
• Click on the Hardware Tab
• Click on the Device Manager then
• Click on the Network Adapter
• See the Lan Card Driver.if it is not available then Install the Lan Card Driver.
• You can install driver from this site Lan Card Driver
• If Lan Card Driver is Install then check It is disable from the network places in the control panel.
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