Although SIC was already established and running, Joe reset SIC between the Security Management Server and a remote Gateway. He set a new activation key on the Gateway’s side with the cpconfig command and put in the same activation key in the Gateway’s object on the Security Management Server Unfortunately SIC cannot be established. What is a possible reason for the problem?

A.
The installed policy blocks the communication.

B.
Joe forgot to reboot the Gateway.

C.
Joe forgot to exit from cpconfig.

D.
The old Gateway object should have been deleted and recreated.