After correctly configuring a new wireless enabled thermostat to control the temperature of the
company’s meeting room, Joe, a network administrator determines that the thermostat is not connecting
to the internet-based control system. Joe verifies that the thermostat received the expected network
parameters and it is associated with the AP. Additionally, the other wireless mobile devices connected to
the same wireless network are functioning properly. The network administrator verified that the
thermostat works when tested at his residence. Which of the following is the MOST likely reason the
thermostat is not connecting to the internet?

A.
The company implements a captive portal

B.
The thermostat is using the incorrect encryption algorithm

C.
the WPA2 shared likely is incorrect

D.
The company’s DHCP server scope is full