Symptom Cause/solution Reference pagesThe alarm occurrenceindication button, the [AUX]buttons and the SD recordingstatus indicator on the “Live”page do not display thecurrent status in real time.• Is the viewer software installed on the PC?Confirm that the viewer software “Network CameraView 4S” is installed.3• Is “Real time” selected for “Alarm status updatemode”?50No image is displayed on the“Live” page.• Press the [F5] key on the keyboard of the PC or clickthe [Live] button.14Shortcut icon of the camera isnot displayed on “Network” ofthe PC.• Is the Windows component of UPnP added?Add the component to the PC in use.138Cannot download the log list. • Download of files using Internet Explorer may bedisabled.Click “Internet Options...” on the [Tools] menu ofInternet Explorer, and [Security] tab. Then, click the[Custom level...] button to open the “SecuritySettings” window. Under “Downloads”, select“Enable” for “Automatic prompting for filedownloads” (except Internet Explorer 9, InternetExplorer 10, and Internet Explorer 11). Click the[OK] button. The warning window will be displayed.Click the [Yes] button. After changing the settings,close the web browser, and then access the cameraagain.-Images are not displayed ornot refreshed smoothly.• Delete temporary Internet files as follows.1. Select “Internet Options...” under “Tools” on themenu bar of Internet Explorer. The “InternetOptions” window will be displayed.2. Click the [Delete Files...] button in the“Temporary Internet Files” section on the[General] tab.-• The firewall function of the anti-virus software maybe filtering the port of the camera.Exclude the port number of the camera from the listof the port numbers to be filtered by the anti-virussoftware.-No indicator lights. • Is “Off” selected for “Indicator” on the “Basic” page?Select “On” for “Indicator”.50H.264 images are notdisplayed.• When “Network Camera View 4S” is deleted from aPC on which both the viewer software “NetworkCamera View 3” and “Network Camera View 4” areinstalled, H.264 images will not be displayed.In this case, delete “Network Camera View 3” fromthe PC and then install “Network Camera View 4S”.3Operating Instructions 19320 Troubleshooting