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82D-Link DCS-3415 User Manual
Section 5 - Frequently Asked Questions
7. Why does the 18x PoE Network Camera work locally but not externally?
• This might be caused by network firewall protection. The setting of the firewall may need to be changed in order for
the 18x PoE Network Camera to be accessible outside of your local LAN. Check with the Network Administrator for
your network.
• Make sure that your 18x PoE Network 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 allows the
18x PoE Network Camera to be accessed outside of your local LAN.
8. I connected the 18x PoE Network Camera directly to a computer with a cross-over Ethernet cable and received
a Windows error upon running the installation Wizard?
• This Windows error will occur if the 18x PoE Network Camera is connected to a computer that is not properly configured
with a valid IP address. Turn off DHCP from the Network Settings in Windows and configure the computer with a valid
IP address or connect the camera to a router with DHCP enabled.
• This error can also occur if the Installation Wizard icon has been clicked more than once from the setup wizard.
9. Noisy images occur. How can I solve the problem?
The video images might be noisy if the 18x PoE Network Camera is used in a very low light environment. To solve this
issue you need more lighting.
10. The images appear to be of poor quality, how can I improve the image quality?
• Make sure that your computer’s display properties are set above 256 colors. Using 16 or 256 colors on your computer
will produce dithering artifacts in the image, making the image appear to be of poor quality.
• The configuration on the 18x PoE Network Camera image display is incorrect. Through the Setup > Image Setup
section of the Web management you need to adjust the image related parameters such as brightness, white balance
and power line frequency for fluorescent light.