To set the BIOS to always have the same MAC address when connected to the router via the laptop's LAN card or via the docking station's LAN card on a Dell Latitude 5420 laptop, you can follow these steps: Turn on your laptop and press the F2 key to enter BIOS Setup. Navigate to the "Integrated NIC" or "Network" section in BIOS. Look for an option called "MAC Address Pass Through" or "MAC Address Spoofing" and enable it. Enter the MAC address you want to use for the laptop or the docking station's LAN card. You can find the MAC address on the label on the bottom of your laptop or on the label on the WD19 docking station. Save your changes and exit BIOS Setup. After making these changes, your Dell Latitude 5420 laptop or the docking station's LAN card should always use the specified MAC address when connecting to your router via LAN cable.
Dell Latitude 5420 laptop, WD19 docking station. How to set the BIOS to always have the same MAC address when connected to the router via the laptop's LAN card or via the docking station's LAN card.
DELL Latitude 5420 and WD19 - MAC address LAN