If the response generated to the ping or Loopback address is different than the one shown in the Verify TCP/IP Installation section, verify that TCP/IP has been installed and is bound to the adapter. Use the steps below, depending on your version of Windows, to verify that the network hardware is bound to the protocol:
Click Start , Control Panel, Network and Internet, and then click Network and Sharing Center.
Click Change adapter settings.
Figure : Network and Sharing Center
Right-click the name of the LAN connection, and select Properties.
If you are prompted for an Administrator password or confirmation, type the password or provide confirmation.
Figure : LAN connection
Place a check in the boxes next to Internet Protocol Version 6 (TCP/IPv6) and Internet Protocol Version 4 (TCP/IPv4), if not checked already.
Figure : Local Area Connection Properties
Click OK when done.
If you still experience issues, continue using these steps.
Use the ping command to ping your computer's IP Address - the IPv4 Address you wrote down in Step 3.
If ping is successful, TCP/IP is properly configured on your computer. The problem exists on the network (not in the software configuration). Continue using these steps to try to find the network device that is preventing network requests from completing.
If ping is not successful, your network adapter is not properly configured for TCP/IP in the operating system. Uninstall and reinstall the network adapter through Device Manager:
Click Start , and enter Device Manager into the Search field. Click Device Manager.
Figure : Opening Device Manager
Double-click Network adapters.
Right-click the name of the adapter, and then click Uninstall.
Figure : Uninstall Network adapter
Restart the computer. Windows reinstalls the network adapter.