Axis Q1755 User Manual page 42

Lower frame rate than expected
Why do I not get 30 frames per sec-
ond?
Image degeneration
The Power indicator is not constantly lit
Faulty power supply
The Status and Network indicator LEDs are flashing red rapidly
Hardware failure
The Status indicator LED is flashing red and the camera is inaccessible
A firmware upgrade has been inter-
rupted or the firmware has otherwise
been damaged
No images displayed on web page
Problem with AMC.
(Internet Explorer only)
Installation of additional ActiveX
component restricted or prohibited
Video/Image problems, general
Image too dark or too light
Missing images in uploads
Slow image update
Poor performance
Poor quality snapshot images
Screen incorrectly configured on your
workstation
Overlay/Privacy mask is not displayed
Incorrect size or location of overlay or
privacy mask.
Browser freezes
Netscape 7.x or Mozilla 1.4 (or later)
can sometimes freeze on a slow com-
puter
Problems uploading files
Limited space
Motion Detection triggers unexpectedly
Changes in luminance
No audio
Incorrect setup
Reduce number of applications running on the client computer.
Limit the number of simultaneous viewers.
Check with the system administrator that there is enough bandwidth available. See also
the online help.
Check in the AMC control panel applet (H.264 tab) that video processing is not set to
Decode only I frames.
Lower the image resolution.
See the section General performance considerations, on page 46.
Decrease the GOV length, see the online help for more information.
Check that you are using an AXIS PS-P power supply.
Contact your Axis dealer.
See the Emergency Recovery Procedure above.
To enable the updating of video images in Microsoft Internet Explorer, set your browser to
allow ActiveX controls. Also, make sure that AXIS Media Control (AMC) component is
installed on your workstation.
Configure your camera to use a Java applet for updating the video images under
Live View Config > Layout > Default Viewer for Internet Explorer. See the online help for
more information.
Check the video image settings. See the online help on Video and Image Settings.
This can occur when trying to use a larger image buffer than is actually available. Try low-
ering the frame rate or the upload period.
Configuring pre-buffers, motion detection, high-resolution images, or high frame rates,
will affect the performance of the camera.
Poor performance may be caused by heavy network traffic, multiple users accessing the
unit, low performance clients, use of features such as Motion Detection, Event handling,
Image rotation other than 180 degrees.
In Display Properties, configure your screen to show at least 65000 colors, that is, at least
16-bit. Using only 16 or 256 colors will produce dithering artifacts in the image.
The overlay or privacy mask may have been positioned incorrectly or may be too large.
Refer to Overlay Image Requirements and Limitations in the online help for more infor-
mation.
Lower the image resolution.
There is only limited space available for the upload of your own files. Try deleting existing
files to free up space.
Motion detection is based on changes in luminance in the image. This means that if there
are sudden changes in the lighting, motion detection may be triggered mistakenly. Lower
the sensitivity setting to avoid problems with luminance.
Check the sound card in the PC. Ensure that the mute button is not pressed and the volume
settings are correct.
42
AXIS Q1755 - Troubleshooting