I have a Cisco switch 2960 24-port with 20 camera connected it
Sometimes camera images are displayed in black. (in NVR)
While the Ping connection is in place
What causes this problem?
There is a way to see the drop packets? (without using monitoring equipment)
Thank you for help and guidance
Do you have any QoS in Place, how far the recorder and Camera in the network, what are the devices in the Path ?
post all the configuration to have look. ?
from what I can find in the manuals, it looks like the cameras use port 80 by default. You could try and use a less common port, since 80 is used for a lot of Internet browsing traffic...