Which of the following should the technician do NEXT?

A number of remote users have reported being unable to securely log on to the company’s network.
Upon speaking with some of the employees experiencing the issue, no changes were made to their

configurations, usernames, or passwords. The technician establishes a theory that one of the VPN
concentrators may be down. Which of the following should the technician do NEXT?

A.
Plan to reboot the concentrator as the potential solution

B.
Escalate the problem to management

C.
Continue to speak to users, questioning if changes have been made

D.
Test access to the concentrator to confirm the status