A user calls you on the phone at the help desk and tells you their wireless client utility indicates excellent signal strength and a successful network connection. You ask them what their IP address is and find that their computer does not have an IP address even though their network uses DHCP. What could cause this condition?

A.
A MAC filter on the access point

B.
An incorrect WPA-Personal passphrase on the client computer

C.
The wireless client is 802.11b, but the access point is 802.11g

D.
The wireless client is using the SSID ?23? but the access point is using the SSID ABC