Dahua NVR2 Series VR2104, User Manual

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User Manual of NVR2XXX(-P4-P8) Series NVR
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Steps:
1. Verify the network between NVR and IPC 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.
Note: 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 “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.
Note: 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 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 IPC is not connected well; impedance mismatches or incompatible.
b) The stream type is not set as “Video & Audio”.
c) The encoding standard is not supported with NVR.
Steps:
1. Verify the cable between the pickup and IPC is connected well; impedance matches and compatible.
Log in the IPC directly, and turn the audio on, check if the sound is normal. If not, please contact the
manufacturer of the IPC.