Use the netstat -i command to see which interfaces are
currently configured. You should see the loopback
interface, plus one interface for each networking card or serial line
interface on your system. When viewing the results of netstat -i:
If you do not see the loopback
interface, reconfigure the TCP/IP stack with the
Network Configuration Manager.
If you do not see a networking card that you know exists on your system,
reconfigure the card with the
Network Configuration Manager.