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How to Verify that the TCP/IP Protocol is Installed (Earthlink DSL for Windows 98)

If the TCP/IP protocol is not installed in the Network section of the Control Panel Error 645 can occur.


Verifying that the TCP/IP protocol is installed
  • Click the Start button, click Settings, and choose Control Panel.



  • Double-click the Network icon.


  • Click the Add button.



    Note: If TCP/IP is already installed then try other resolutions. If there is more than one TCP/IP listed and there is no TCP/IP -> Dial-Up Adapter then proceed with this resolution.

  • Select Adapter in the list.
  • Click the Add button.



  • Select Microsoft in the Manufacturers list.
  • Select TCP/IP in the Network Protocols list.
  • Click the OK button.




  • Click the OK button.



    Note: If prompted, insert the Windows CD-ROM or point to the location where the cabinet files are stored

  • Click the Yes button if prompted to restart the computer.

    When the computer has restarted, try connecting to the internet again.

Source: Earthlink