That the machine came with. It should have worked until some one installed some new driver. Or go to dell.com enter the service tag and install the driver for this machine's wifi card.
If all fails, wipe it out and install back to the factory load. Instruct the owner not to update drivers.
time after time my computer, Dell 1545s-6055NBK, does not wake up the wireless adaptor which came installed . In order to get on line I have to turn the computer off and restart and then it responds. Any solution to this annoying problem would be appreciated. Thank you.