A Media Access Control (MAC) address is a unique way to identify hardware and network devices that are connected to a network. You can easily locate the MAC address of any network card by using Window's command line prompts or accessing your network configuration page.
Find A MAC Address Through Windows Command Line Prompts
Click "Start" and type "Run" in the Start menu's search box.
In the Run window, type "cmd" and click "OK" to bring up a command line prompt.
Type "ipconfig /all" in the window and press "Enter." All of the network devices connected to the computer will be displayed.
Locate the network device you are searching for. The MAC address for the device is listed under the heading "Physical Address." If the device you are looking for is not listed, but connected to your network, access your network's configuration page to find the MAC address you are searching for.
Find A MAC Address Through Network Configuration
Open your Internet browser and type 192.168.2.1 in the address bar. This number may be different depending on the make and model of your router. You can also try 192.168.1.1 or 192.168.3.1.
Look for "DHCP Client List" or "Client List" on the menu to the left or the menu on the top and click the link.
Enter your password if you have set one up. If not, click "Submit."
View the list of connected network devices and locate the MAC address of the corresponding device in the MAC address column.
Many network devices also have a physical label on the back that shows the MAC address.
If your computer connects to your network via a Wi-Fi connection, the tips above to locate your MAC address through your network configuration page may not work. If you come across this problem, connect the computer directly to the router with an Ethernet cable, and repeat the steps above.