Comelit IPPTZ120IRD Manuel Utilisateur page 44

Possible reason 2: Too many users are viewing the images.
Solution: Block some clients or reduce the video frame rate.
Possible reason 3: The bandwidth is low.
Solution: Reduce video frame rate or video compression bit rate.
4.Fail to visit Network High Speed Dome via IE browser.
Possible Reason 1: Network is disconnected.
Solution: Connect your PC to network, checking whether it works properly or not. Check whether there is cable failure or network
failure caused by PC virus, until PCs can be connected with the command of Ping.
Possible reason 2: IP Address has been occupied by other devices
Solution: Stop the connection between Network High Speed Dome and Network, hook up Network High Speed Dome to PC
separately, reset IP address according to the proper operations recommended.
Possible reason 3: IP addresses are in different subnets.
Solution: Check IP address, subnet masking address of the DVS and the settings of Gateway.
Possible reason 4: Physical address of network conflict with Network High Speed Dome
Solution: Modify the physical address of Network High Speed Dome.
Possible Reason 5: Web port has been modified
Solution: Contact Network Administrator to obtain related information.
5.The color of images is abnormal (green or other colors).
Sometimes Network High Speed Dome images cannot display properly for the difference between Graphics Cards, the images
appears to be green or other colors, then you should run the program Config.exe (or run C:\windows/ system32\Config.exe)to set
the following parameters of display buffer: auto-detection, used display card memory or system memory, then reopen IE and
connect Network High Speed Dome.
6.There is no sound while monitoring.
Possible Reason 1: No audio input connection
Solution: Check audio connection of the host
Possible Reason 2: The audio option of Network High Speed Dome is off
Solution: Check audio parameter settings to see if you have opened the audio.
7.Search software cannot find device.
Possible reason: Search software adopts multicast protocol to perform searching. But the firewall forbids multicast data packet.
Solution: Disable the firewall.
8.Image processing doesn't work properly.
Possible Reason 1: System issue, DirectX function is disabled, which will cause slow display of images and abnormal color.
Possible Reason 2: Hardware issue, graphics card doesn't support image acceleration and hardware zooming functions. (For
hardware issue, the only solution is to replace graphics card)
Solution: Install DirectX image drive, then StartRuninput "Dxdiag" order.
Enable DirectDraw speedup, Direct3D speedup, AGP veins speedup in DirectX function. If they cannot be enabled,
that means DirectX installation fails or hardware not support.
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