85
Problem
Possible Cause and Solution
A camera is offline, and
No
Link
is displayed.
Click
Menu
>
Maintain
>
System Info
>
Camera
. The cause is
displayed in the
Status
column. Common causes include disconnected
network, incorrect username or password, weak password,
insufficient bandwidth.
Check network connection and network configurations.
If it indicates incorrect username or password, check that the
camera password set in the NVR is the one used to access the
camera's Web interface.
If it indicates denied access for weak password, log in to the
camera's Web interface and set a strong password.
If it indicates insufficient bandwidth, delete other online IP devices
in the NVR.
The NVR displays live video
for some cameras and
No
Resource
for others.
Set the camera to encode the sub stream, and decrease its
resolution to D1.
Set the NVR to use the sub stream first for live view.
A camera goes online and
offline repeatedly.
Check if network connection is stable.
Upgrade the firmware for the camera and the NVR. Contact your
dealer for the latest versions.
Live view is normal, but the
recording cannot be found.
Check that a recording schedule has been properly configured.
Check if the time and time zone configured in the NVR are correct.
Check if the hard disk storing the recording has been damaged.
Check if the desired recording has been overwritten.
Motion detection is not
effective.
Check that motion detection is enabled, and the motion detection
area is properly configured.
Check that triggers, including sensitivity, target size, and duration,
are properly configured for motion detection.
Check that the arming schedule is properly configured.
A hard disk cannot be
identified by the NVR.
Use the power adapter delivered with your NVR.
Power down the NVR and then mount the hard disk again.
Try another disk slot.
The disk is not compatible with your NVR. Contact your dealer for a
list of compatible disk models.
The mouse does not work.
Use the mouse delivered with your NVR.
Make sure no cable is extended.
