D-Link DCS-935L - Page 53

53D-Link DCS-935L User Manual
Section 6 - Troubleshooting
5. Why does my DCS-935L work locally but not remotely?
Thismightbecausedbytherewallprotection.ChecktheInternetrewallwithyoursystemadministrator.Therewallmayneedtohavesome
settings changed in order for the network camera to be accessible outside your local LAN.
Makesurethatthenetworkcameraisn’tconictingwithanyWebserveryoumayhaverunningonyournetwork.
Thedefaultroutersettingmightbeapossiblereason.Makesurethatthecongurationoftheroutersettingsallowthenetworkcameratobe
accessed outside your local LAN.
6. Why does a series of broad vertical white lines appear through out the image?
ItcouldbethattheCMOSsensor(asquarepanelsituatedbehindthelensthatmeasuresthelightsignalsandchangesitintoadigitalformatso
yourcomputercandisplayitasanimagethatyouarefamiliarwith)hasbecomeoverloadedwhenithasbeenexposedtobrightlightssuchas
directexposuretosunlightorhalogenlights.Relocatethecameratoamoreshadedareaassoonaspossible.Prolongedexposuretobrightlights
willdamagetheCMOSsensorinyourcamera.
7. The camera is producing noisy images. How can I solve the problem?
Thevideoimagesmightbenoisyifthenetworkcameraisplacedinaverylow-lightenvironment.
8. The images are poor quality. How can I improve the image quality?
Makesurethatyourcomputer’sdisplaypropertiesaresettoatleast16-bitcolor.Using16or256colorsonyourcomputerwillproducedithering
artifactsintheimage,makingtheimagelookasifitisofpoorquality.
Thecongurationonthenetworkcameraimagedisplaymaybeincorrect.TheImageSetuppageintheWebCongurationsectionexplainshow
youcanadjusttheparameterssuchasbrightness,contrast,hueandcolorsaturation.Referto“ImageSetup”onpage34.
9. Why are no images available through the Web browser?
ActiveXmightbedisabled.IfyouareviewingtheimagesfromInternetExplorermakesureActiveXhasbeenenabledintheInternetOptionsmenu.
YoumayalsoneedtochangethesecuritysettingsonyourbrowsertoallowtheActiveXplug-intobeinstalled.
IfyouareusingInternetExplorerwithaversionnumberlowerthan7,thenyouwillneedtoupgradeyourWebbrowsersoftwareinordertoview
the streaming video transmitted by the network camera.