8-6Before contacting the dealer where you purchased the product or Canon's Customer Service Center, check the itemsspecified as follows. If a log message is displayed, check the details of the message and corresponding countermeasure inthe log message list.TroubleshootingProblem CountermeasuresThe camera does not start. • If you are using a PoE HUB, check if the LAN cable is connected correctly.• If you are using an AC adapter (optional), check if the AC adapter is connectedcorrectly.• Turn the camera off and on again (See “Connecting the Camera” in the “InstallationGuide”).VB Initial Setting Tool does not operate. • Check if the LAN cable is connected correctly.• Turn the camera off and on again (See “Connecting the Camera” in the “InstallationGuide”). The camera no longer responds to VB Initial Setting Tool 20 minutes afterbeing turned on.• Check if the camera and the PC in which the VB Initial Setting Tool is operating areconnected to the LAN in the same segment.• The VB Initial Setting Tool may not function when the [Windows Firewall] function isenabled. In this case, see “Notes on Use When the [Windows Firewall] Function isEnabled” (P. 1-9).• Check if you are using an older version of the VB Initial Setting Tool.Camera Angle Setting Tool does not operate. • Check if the LAN cable is connected correctly.• Check if the camera and the PC in which the Camera Angle Setting Tool is operatingare connected to the LAN in the same segment.• “Could not launch application. Install .NET Framework 3.5 (SP1 or later).” If thismessage is displayed, install .NET Framework 3.5 (SP1 or later) or enable settings(See P. 1-8).The top page of the camera is not displayed. • Check if the LAN cable is connected correctly.• Check if the network to which the camera is connected is set up correctly. Inparticular, check if the IP address, subnet mask and default gateway address are setwithin the ranges supported by the applicable network.• If you have changed the IP address, the new address will not become effective untilthe camera is rebooted.• Check if the correct URI (camera IP address) is entered in your web browser (P. 4-2,P. 5-31, P. 7-4).The Admin Tools will not start.The Admin Viewer will not start.• “The Web browser you are using is not supported.” If this message is displayed, useInternet Explorer 7.0 or later.• “Could not launch application. Install .NET Framework 3.5 (SP1 or later).” If thismessage is displayed, install .NET Framework 3.5 (SP1 or later) or enable settings(See P. 1-8).• “JavaScript is unavailable or not enabled.” If this message is displayed, set [ActiveScript] to [Enable] in Internet Explorer's security settings. (See (2) below forinstructions on how to set this.)• “Could not launch application. The following settings are required to use AdminViewer or Admin Tools.” If this message is displayed, set the following.(1) Register your Admin Tools certificate with a “Trusted Publisher” (P. 4-4).(2) In Internet Explorer click [Tools] > [Internet Options] > [Security] > [Customlevel] and under the Security Settings list, set [XAML browser applications],[File download] and [Launching programs and files in an IFRAME] to [Enable].Video is not displayed. • To improve video quality, refer to “[Video] Setting Image Size, Quality and FrameRate” in “Chapter 5 Setting Page” (P. 5-12) to change settings and make adjustments.• Up to 30 viewers can access the camera at the same time. If this limit has beenexceeded, video is not displayed and a message appears.The image is not displayed in the Viewer PTZpanel.• If the [Maximum Number of Clients] is configured to 0 under [Image Server] in theSettings page, the image will not be displayed in the Viewer PTZ panel. Increase thenumber in [Maximum Number of Clients].