You replaced the LCD panel in a laptop computer and verified full system functionality, including wireless connectivity. The customer picked up the laptop and now reports he can no longer access his wireless network regardless of how close the computer is positioned to the WAP. Other users can connect to the WAP without any problem.

Which of the following is the most likely reason for this problem?
The laptop's wireless radio is toggled to the off position.

There was a mistake in the question. The question included a possible answer. I agreed with the answer given and provide an explanation why I agreed with the answer given.

ANSWER: The laptop's wireless radio is toggled to the off position

Explanation:

Since the laptop technician has verified full system functionality before the customer picked up the item then the problem is likely a setting issue. For the technician to test the wireless connectivity and was satisfied, it means the wireless LAN card was installed and the antennas are working to verify there are no hardware issues. The correct device driver must have been installed as well. Since other users can connect to the WAP it means it is not an external problem. All that is left to check is if the wireless radio is ON or OFF. The customer must have mistakenly toggled the wireless radio OFF and he needs to turn it on in other to connect to the Wireless Access Point.