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Alhua - Dahua DVR Manual

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FAQ 294
For the product supports analog standard definition camera/HD camera, you need to go to
the Main Menu > CAMERA > CHANNEL TYPE to select corresponding channel type and
then restart the DVR.
29. I cannot connect to the IP channel.
There are following possibilities:
Check the camera is online or not.
Check IP channel setup is right or not (such as IP address, user name, password,
connection protocol, and port number).
The camera has set the whitelist (Only the specified devices can connect to the camera).
30. After I connected to the IP channel, the one-window output is OK, but there is no
multiple-window output.
There are following possibilities:
Check the sub stream of the camera has been enabled or not.
Check the sub stream type of the camera is H.264 or not.
Check the device supports camera sub stream resolution or not (such as 960H, D1, and
HD1).
31. After I connected to the IP channel, the multiple-window output is OK, but there is no
one-window output.
There are following possibilities:
Check there is video from the IP channel or not. Please go to the Main Menu > INFO >
BPS to view bit stream real-time information.
Check the main stream of the camera has been enabled or not.
Check the main stream type of the camera is H.264 or not.
Check the device supports camera main stream resolution or not (such as 960H, D1, and
HD1).
Check camera network transmission has reached the threshold or not. Please check the
online user of the camera.
32. After I connected to the IP channel, there is no video output in the one-window or the
multiple-window mode. But I can see there is bit stream.
There are following possibilities:
Check the main stream/sub stream type of the camera is H.264 or not.
Check the device supports camera main stream/sub stream resolution or not (such as
1080P, 720P, 960H, D1, and HD1).
Check the camera setup. Please make sure It supports the products of other
manufacturers.
33. DDNS registration failed or cannot access the device domain name.
There are following possibilities:
Check the device is connected to the WAN. Please check the device has got the IP
address if the PPPoE can dial. If there is a router, please check the router to make sure the
device IP is online.
Check the corresponding protocol of the DDNS is enabled. Check the DDNS function is
OK or not.
Check DNS setup is right or not. Default Google DNS server is 8.8.8.8, 8.8.5.5. You can
use different DNS provided by your ISP.
34. I cannot use the P2P function on my cell phone or the WEB.
There are following possibilities:
… 307 …


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  • We have lost power on our DVR, there is power up to the power supply,
    and the whole system is coupled to a UPS system for some time......
    we have had zero lightning and any effects of load shedding is nullified by UPS system,
    could you kindly inform what could be wrong PLEASE ?
    Chris Gibson 0827932600 Submitted on 22-2-2023 at 12:16

    Reply Report abuse


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