A user from the finance department reports that their Internet connection is no longer working. A different user from the same department, reports the inability to access the network printer. The network technician is able to access the Internet and other departments, but is unable to access the main switch at the finance department. Which of the following steps should the network technician follow?

A.
Escalate the problem to the Chief Information Officer (CIO).

B.
Establish a theory of probable cause.

C.
Question users and continue to gather information.

D.
Establish a plan of action to resolve the problem immediately.