Canon VB-C500D Operation Manual page 131

Troubleshooting
Video is not displayed
If you want to improve the video quality, refer to "Setting the Image Size, Quality, Frame
Rate, On-Screen Display of Date and Time, etc. (Video)" ( P. 1-18) in "Chapter 1 Detailed
Settings" to change the settings to adjust the quality.
Up to 30 viewers can access the camera at the same time. If this limit has been exceeded,
video is not displayed and a message appears.
There is no audio
If there is no audio, check the audio server settings of the camera and also check the
sound and audio device settings of the PC.
If you are using Admin Viewer with the Administrator authorities, check if the camera is
connected to VK Viewer or other viewer that lets the Administrator use audio.
Audio cannot be used if you are using a proxy server.
Stream recording cannot be used
Stream recording cannot be used if HTTP or FTP upload is selected for [Upload] in the
[Upload] menu. To use stream recording, set [Upload Disabled] under [Upload] ( P. 1-22).
The camera cannot be controlled
If you connect to Admin Viewer as an Administrator, you will have an exclusive possession
of the camera control privileges. If you connect to Admin Viewer as an authorized user, you
cannot control the camera unless the current Administrator releases the camera control
privileges. Contact your Administrator ( P. 3-3).
The viewer gets disconnected
Check the network and PC for abnormality.
Reboot the PC and connect again.
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