While initially testing the Cisco Unified MeetingPlace on-premise internal web server, the end user can??t join a web meeting successfully; the error states: “Too early to attend.” What should be checked first to troubleshoot?

A.
Time synchronization of web servers in Windows to the Application Server

B.
Time synchronization of Application Server to the NTP corporate server

C.
Profile time zone parameter

D.
Web server configuration settings