devmgmt.mscand press Enter. Type this command
ipconfig /alland press Enter. Make sure that IP Address, Subnet Mask, Default Gateway and DNS Servers are having addresses.
ncpa.cpland press Enter. Right click on your Network icon. Select Properties, scroll down and double click on Internet Protocol [TCP/IP], set your "Preferred DNS Server" to
8.8.8.8(Google) or
4.2.2.4(OpenDNS).