Honeywell 720P User Manual page 82

Appendix B: Troubleshooting & Frequently Asked Questions
Internet Explorer does not
seem to work well with the
device
IP Wizard II program fails to
save the network
parameters.
Cannot work with NAT router
Some IP cameras are
working but others are failed
Cannot access the login
page and other web pages of
the Network Camera from
Internet Explorer
Image or video does not
appear in the main page.
Check the device's ActiveX
is installed on your computer
76
Make sure that your Internet Explorer is version 8.0 or later. If you are
experiencing problems, try upgrading to the latest version of Microsoft's Internet
Explorer from the Microsoft webpage.
• Network may have trouble. Confirm the parameters and connections of the
device.
UPnP NAT Traversal
• Maybe NAT router does not support UPnP function. Please check user's manual
of router and turn on UPnP function.
• Maybe UPnP function of NAT router is not compatible to the IP camera. Please
contact your dealer to get the approval routers list.
• Maybe too many IP cameras have been installed on the LAN, and then NAT
router is out of resource to support more cameras. You could turn off and on NAT
router to clear out of date information inside router.
Access this device
• Maybe the IP Address of the Network Camera is already being used by another
device or computer. To confirm this possible problem, disconnect the Network
Camera from the network first, and then run the PING utility to check it out.
• May be due to the network cable. Try correcting your network cable and
configuration. Test the network interface by connecting a local computer to the
Network Camera via a crossover cable.
• Make sure the Internet connection and setting is ok.
• Make sure enter the IP address of Internet Explorer is correct. If the Network
Camera has a dynamic address, it may have changed since you last checked it.
• Network congestion may prevent the web page appearing quickly. Wait for a
while.
The IP address and Subnet Mask of the PC and Network Camera must be in the
same class of the private IP address on the LAN.
• Make sure the http port used by the Network Camera, default=80, is forward to
the Network Camera's private IP address.
• The port number assigned in your Network Camera might not be available via
Internet. Check your ISP for available port.
• The proxy server may prevent you from connecting directly to the Network
Camera, set up not to use the proxy server.
• Confirm that Default Gateway address is correct.
• The router needs Port Forwarding feature. Refer to your router's manual for
details.
• Packet Filtering of the router may prohibit access from an external network. Refer
to your router's manual for details.
• Access the Network Camera from the Internet with the global IP address of the
router and port number of Network Camera.
• Some routers reject the global IP address to access the Network Camera on the
same LAN. Access with the private IP address and correct port number of
Network Camera.
• When you use DDNS, you need to set Default Gateway and DNS server
address.
• If it's not working after above procedure, reset Network Camera to default setting
and installed it again.
• If the problem is not solved, the Network Camera might be faulty. Contact your
dealer for further help.
• The first time the PC connects to Network Camera, a pop-up Security Warning
window will appear to download ActiveX Controls. When using Windows XP, or
Vista, log on with an appropriate account that is authorized to install applications.
• Network congestion may prevent the Image screen from appearing quickly. You
may choose lower resolution to reduce the required bandwidth.
Go to C:\Windows\Downloaded Program Files and check to see if there is an entry
for the file "IP Camera Control". The status column should show "Installed". If the
file is not listed, make sure your Security Settings in Internet Explorer are