Dahua XVR User Manual page 283

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, 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, there 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, HD1 and etc.).
31. After I connected to the IP channel, there 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->System->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, HD1 and etc.).
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, HD1 and etc.).
 Check the camera setup. Please make sure It supports the products of other
manufacturers.
33. DDNS registration failed or can not 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.
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