Installation and Configuration Manual
38
Device
Problems
Solutions
The
camera
restarts
abnormally
or
crashes.
The input voltage does not meet the requirements or is unstable.
Hardware of the camera is abnormal.
If it is caused by an abnormal upgrade, press and hold Reset for
5 s to reset it. If the problem is serious, return the camera to
factory for repair.
Network
connection
is
unstable.
Check the network cable is connected correctly.
Check whether there is IP conflict.
Mac address conflict.
The camera restarts repeatedly.
Failed to log in to
the device on IE
browser.
Check whether the device starts normally and whether the
network connection is normal.
The browser security level is very high, preventing the download
of webpage controls
If the local computer controls conflict with the camera space,
delete the controls and download them again.
Incorrect username and password.
If the camera programs do not start normally, press and hold
Reset for 5 s to reset the camera.
If hardware is abnormal, return the product to factory for repair.
Distorted image
colors
and
brightness, and
blurry videos
If the camera parameters are incorrect, restore the camera to
default settings.
If the camera stream is inappropriate, improve the stream.
If the image sensor is abnormal, return the camera to factory for
repair.
Incorrect time
Synchronize the camera time with your computer.
If hardware is abnormal, return the camera to factory for repair.
Dahua recordings
cannot be played
on computers.
Log in to Dahua official website to download Dahua player.
Upgrade the player.
No snapshot for a
passing vehicle
On the live view page, check whether Receive Images is selected.
The camera does
not
recognize
vehicles
or
recognition rate
is low.
Check the definition of the camera.
Check the pixels of the license plate, which is required to be 140–
160.
Check the illumination to see whether the license plate is
overexposed.
Check scenario configurations to see whether the license plate is
within the zone line and lane line.
The barrier gate
does not open
when recognizing
vehicles in the
allowlist.
Check whether Allowlist Open is selected for camera-barrier
gate linkage.
Check whether Allowlist is enabled.
Check whether the allowlist data is imported, and whether the
opening permission, and camera date is synchronized with the
computer.
