User Manual of Network Video Recorder
209
c) The performances of hardware are not good enough, including CPU, memory, etc..
Steps:
1. Verify the network between NVR and IP camera is connected.
1) When image is stuck, connect the RS-232 ports on PC and the rear panel of NVR with the RS-232
cable.
2) Open the Super Terminal, and execute the command of “ping 192.168.0.0 –l 1472 –f” (the IP address
may change according to the real condition), and check if there exists packet loss.
Simultaneously press Ctrl and C to exit the ping command.
2. Verify the network between NVR and PC is connected.
1) Open the cmd window in the Start menu, or you can press “windows+R” shortcut key to open it.
2) Use the ping command to send large packet to the NVR, execute the command of “ping
192.168.0.0 –l 1472 –f” (the IP address may change according to the real condition), and check if
there exists packet loss.
Simultaneously press Ctrl and C to exit the ping command.
3. Verify the hardware of the PC is good enough.
Simultaneously press Ctrl, Alt and Delete to enter the windows task management interface, as shown in
the following figure.
Windows task management interface
Select the “Performance” tab; check the status of the CPU and Memory.
If the resource is not enough, please end some unnecessary processes.
4. Check if the fault is solved by the above steps.
If it is solved, finish the process.
If not, please contact the engineer from our company to do the further process.
When using the NVR to get the live view audio, there is no sound or there is too much noise, or the
volume is too low.
Possible Reasons:
a) Cable between the pickup and IP camera is not connected well; impedance mismatches or incompatible.
b) The stream type is not set as “Video & Audio”.
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