Check your HOST file

  1. With a text editor, open drive>:\winnt\system32\drivers\etc\hosts

  2. Verify that the TCP/IP address is correct for your address server.

  3. Update the file with the correct information and save it.

  4. Reboot your computer.

  5. Reinstall TCP/IP if this error message is returned with ping:

    <hostname>:Bad IP address