Ping is a useful command that allows a user to determine whether different network devices are functioning or not. Ping does nothing diagnose or even identify specific problems. Ping simply sends a signal and lets the user know if there was a response from the device. The user can ping the NIC (network interface card) card to see if it is functioning.
Open the command prompt. Press "Start," then click on "Run." Where it says "Open:", type "cmd."
Type "ping 127.0.0.1", then press enter. If the card is installed and functioning, it will send a response back. If there is a problem with the card, there will be an indication that there was no response.
Exit the command prompt.
127.0.0.1 is the loopback address for NIC's. A loopback address allows quick communication by networks and devices back to the NIC.