9-11
Chapter 9: Troubleshooting
Symptom
Possible Cause / Solution
Part of image becomes
pixelated / Square
color blocks are seen
Network bandwidth is insufficient.
Without sufficient bandwidth, video quality will deteriorate and image errors like pixela-
tion or frame-drop may occur. When you view your camera remotely from the Internet,
your camera needs sufficient upload bandwidth to transmit video stream and you need
sufficient download bandwidth to download video stream at the remote location.
To gain satisfactory video quality, ensure there is sufficient upload bandwidth available
to your network camera by taking the following actions:
1. Contact your Internet Service Provider (ISP) to confirm the upload/download speed
limit of your service. If the bit rate of the video stream is set at 512Kbps or higher but
your Internet service only provides a max. of 512Kbps for upload bandwidth, then try
to lower the bit rate setting in [Setup] > [Video].
2. Run a network speed diagnostics on WebVUer to determine the bandwidth level
of the currently connected network. To do so, log in to your camera using WebVUer
and go to [Setup] > [Network] > [Network Bandwidth]. When the speed diagnostics is
done, the WebVUer will advise you of the appropriate setting.
Consider the following actions to ensure sufficient download bandwidth at your remote
viewing location:
1. Contact your Internet Service Provider (ISP) to confirm the upload/download speed
limit of your service. If the bit rate of the video stream is set at 3Mbps or higher but
your Internet service only provides a max. of 2Mbps download bandwidth, then try to
lower the bit rate setting in [Setup] > [Video].
2. Upgrade to Gigabit network switch. Regular 10/100 Mbps network switch cannot
handle multiple megapixel streams, thus you may consider upgrading to Gigabit net-
work switch when building up your network infrastructure.
3. While you are viewing the network camera remotely, shutting down any other ap-
plications that are also consuming the network bandwidth in the background.
Symptoms, Causes and Solutions
