A technician has installed an older IP camera as a temporary replacement for a recently failed newer one. The technician notices that when the camera`s video stream is off, the ping roundtrip time between the camera and the network DVR is consistently less than 1ms without dropped packets. When the camera video stream is turned on, the ping roundtrip time increases dramatically, and network communication is slow and inconsistent. Which of the following is MOST likely the issue in this scenario? 

Answer options:

A. VLAN mismatch
B. Duplex mismatch
C. Cat 6 RX/TX reversed
D. Damaged cable

B