The Dell Latitude D600 is a small, light laptop originally designed for business users. The lightweight case design and built-in Wi-Fi make the Dell Latitude D600 an excellent choice for travel. The internal Wi-Fi on the Dell Latitude D600 must be enabled in two places. Wi-Fi must be enabled in the BIOS, and must be turned on using the toggled Function key. In addition, the correct drivers for the Wi-Fi adaptor must be installed. When the Windows drivers are installed, the Dell Wi-Fi connection utility is also installed. The drivers and Wi-Fi utility are available for download at the Dell Drivers and Downloads website.
Reboot the Dell Latitude D600.
Press the "F2" key, when prompted, to enter the BIOS Setup.
Press the right arrow on the keyboard to move to selection on the top navigation bar of the BIOS to the "Hardware" option.
Press the down arrow to move to the Wi-Fi adaptor option and press the "Enter" key.
Select "Enabled" and press "Enter."
Press the "F10" key to save, exit the BIOS and reboot the computer. When the computer boots up, Wi-Fi is enabled in the BIOS. Next, make sure the Wi-Fi switch is toggled on from the keyboard.
Press and hold the "Function (Fn)" key on the keyboard.
Press the "F2" key once while holding the Function key. The F2 key is located on the topmost row of keys on the Dell keyboard.
Press the F2 key again to turn off Wi-Fi on the Dell laptop.