A new Cisco DX650 is not registering in the Cisco Communications Manager running version 9.1.2. The latest device package and firmware was uploaded on allCisco Communications Manager servers in the cluster. What is most likely the cause of this issue?
A. A cluster-wide reboot is needed to enable the functionality.
B. You must restart the TFTP server.
C. The firmware in the Cisco Unified Communications Manager is incorrect.
D. The software version in the Cisco Unified Communications Manager is incorrect.
Correct Answer: A