D-Link DCS-1110 User Manual page 70

Section 3 - Configuration
Why does the Internet Camera work locally but not externally?
This might be caused by the firewall protection. Check the Internet firewall with your system administrator. The firewall
may need to have some settings changed in order for the Internet Camera to be accessible outside your local LAN.
Refer to page 41 for more information about installing your camera behind a router.
Make sure ahat the Internet Camera isn't conflicting with any web server you may have running on your network.
The default router setting might be a possible reason. Check that the configuration of the router settings allow the
Internet Camera to be accessed outside your local LAN.
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 present it into 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. Reposition the Internet
Camera into a more shaded area immediately as prolonged exposure to bright lights will damage the CMOS sensor.
The focus on the Internet Camera is bad, how can I correct it?
Adjust the Internet Camera focus manually as described in the section titled "Adjusting the Camera Focus" on page
76.
Noisy images occur. How can I solve the problem?
The video images might be noisy if the Internet Camera is used in a very low light environment. To solve this issue you
need more lighting, or click on the Nighshot button on the Home page.
D-Link DCS-1110 User Manual 70