CNB MDC4050VR - Manual (Page 40)

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Network Camera_ User manual
4.1.2. The name of the server is shown but no video is available (Only the Frame of Web
Viewer)
In this case, network connection is not a problem. Please do the followings:
Check whether the video is properly applied into the product.
Check whether there is firewall between the product and the client and check whether the network
is NAT type.
Connect to the product through TCP. (Actually only TCP is available presently)
If the network type is NAT, “port mapping” should be done. The NAT server will send the packet
through specific port to the product through “port mapping”. IP sharing device has the “port
mapping” function in general. Details of the procedure can be found from the manual of the IP
sharing device.
4.2. Trouble shooting after successful connection to the device
4.2.1. Video movement is slow
In Basic Setup of Admin Mode, lower the “Quality”. High quality means more data. You can also set
the “Max. upload rate” to higher value. But this value must be lower than the maximum upload speed
of your network. For example, if the maximum uploading bandwidth of the network is 400Kbps, set
the total “Max. upload rate” as 384Kbps. If you set it higher, the video image can be corrupted with
artifacts.
Ask your network manager or ISP for maximum uploading bandwidth of the network.
4.2.2. The image is dull and I see green, pink dots
This could be caused by performance limitation of the PC. Do not run too many programs while
running viewer program. The other reason could be missing data in the transmission from the device.
4.2.3. Mosaic phenomenon
Mosaic phenomenon occurs when not enough network bandwidth is available considering the
resolution and frame rate of the video.
Example is 704x480 video with low Max. upload rate.
Users are recommended to adjust resolution and frame rates to lower values for lower bandwidth
network