53AXIS 221 - TroubleshootingVideo/Image problems - generalNo images in browser(Internet Explorer for Windows only)To enable the updating of video images in Microsoft Internet Explorer, set your browserto allow ActiveX controls. Also, make sure that AXIS Media Control (AMC) componentis installed on your workstation.Installation of additional ActiveX com-ponent restricted or prohibited.Configure your AXIS 221 to use a Java applet for updating the video images underLive View Config > Layout > Default Viewer for Internet Explorer. See the online helpfor more information.Image too dark or too light. Check the video image settings. See the online help on Video and Image Settings.Missing images in uploads. This can occur when trying to use a larger image buffer than is actually available. Trylowering the frame rate or the upload period.Slow image update. Configuring, e.g. pre-buffers, motion detection, high-resolution images, high framerates, etc, will reduce the performance of the camera.Poor performance. Poor performance may be caused by e.g. heavy network traffic, multiple users accessingthe unit, low performance clients, use of features such as Motion Detection, Event han-dling, Image rotation other than 180 degrees.Image gradually gets darker or lighter. When using the AXIS 221 in locations lit by fluorescent lighting, check in the advancedimage settings that the Exposure control is set to Flicker-free.Image loses focus often. Disable the DC-Iris lens in the settings for Video & Image > Advanced. Focus the cam-era following the instructions on page 9, and then enable the DC-Iris lens.Images only shown in black & white. Check the color level setting.Check the setting for the IR cut filter. Images are shown in color only when this filter isenabled, i.e. when set to yes or auto.Blurred images. Refocus the camera. Check in the Video & Image > Advanced - Camera Settings thatDC-Iris is set to Enabled. If the images are still blurred adjust the metal ring until theimage is sharp, see Removing and attaching the lens, on page 55.Rolling dark bands or flickering inimage.Try adjusting the Flicker-free exposure setting under advanced image settings. Notethat the 'Hold Current'/Manual setting may cause unwanted effects.Video/image problems - MPEG-4Lower frame rate than expected. Check with the administrator that there is enough bandwidth available. Check also thesettings for bit rate control, in the Video & Image > Advanced > MPEG-4 settings.Using an inappropriate video object type can also affect the frame rate. See the onlinehelp for more information.Check in the AMC control panel applet (MPEG-4 tab) that video processing is not set toDecode only I frames.Lower the image resolution.Reduce the number of applications running on the client computer.No MPEG-4 displayed in theclient.Check that the correct network interface is selected in the AMC control panel applet(network tab).Check that the relevant MPEG-4 connection methods are enabled in the AMC controlpanel applet (network tab).In the AMC control applet, select the MPEG-4 tab and click the button Set to defaultMPEG-4 decoder.No multicast MPEG-4 displayed in theclient.Check with your network administrator that the multicast addresses used by theAXIS 221 are valid for your network.Multicast MPEG-4 only accessible bylocal clients.Check if your router supports multicasting, or if the router settings between the clientand the server need to be configured. The TTL (Time To Live) value may need to beincreased.