What could be a potential problem that would keep this user from connecting to the access point?

You are a network administrator and receive a call from a user stating that she cannot access the wireless LAN. The office contains 50 other users, and nobody else is complaining about the network.

What could be a potential problem that would keep this user from connecting to the access point?
A . The connection to the Internet has been terminated.
B . The access point needs to be upgraded.
C . Incorrect firmware was installed on the access point.
D . The wireless client device has a corrupt device driver.

Answer: D