Appendix
VI
Appendix F: Troubleshooting
1.Cannot control PTZ camera
• Check cable connection and camera power.
• COM port parameters are not correct, or the PTZ device is not compatible.
• ID of the PTZ camera is not set correctly.
• Switch both VP-404R(H) / VP-4048R(H) and PTZ camera off and on again.
• VP-404R(H) / VP-4048R(H) does not support this type of PTZ camera.
2.Cannot access VPON from browser in network mode.
• Verify the network cable is well connected to the hub and the network is good.
• Make sure you are using an appropriate IP address for the network.
• Clear the ARP list.
• If you are running MS Proxy Client on your PC, and the IP address assigned to the VP-404R(H) /
VP-4048R(H) is not a valid local IP on the network, allocate a valid local IP address to the
VP-404R(H) / VP-4048R(H) or disable MS Proxy Client from the Control Panel.
• If you can ping the IP address of the VP-404R(H) / VP-4048R(H), disconnect VPON from network
and ping this IP again. If there is a response, then you have a duplicated IP address on the network.
• Clear your browser cache and configure the browser to check for newer versions of the web page on
every visit.
• If you still cannot access the VP-404R(H) / VP-4048R(H), disable proxy settings in your browser.
3.You can access the VP-404R(H) / VP-4048R(H) on the intranet, but not on the Internet.
• Verify your intranet is connected to the Internet.
• Verify if a valid public IP is assigned to the VP-404R(H) / VP-4048R(H) or a valid public IP is
mapped to a valid local IP assigned to VP-404R(H) / VP-4048R(H).
4.No video.
• Reload the page.
• Clear your browses cache and configure the browser to check for newer versions of the web page on
every visit.
5.You can access video on the intranet, but not across the Internet:
• Check firewall and proxy server settings. The VP-404R(H) / VP-4048R(H) uses standard HTTP
protocol and port 80. It might be necessary to enable video MIME types (video/x-nficwmh263 and
video/xnficwmhjpeg) for the VP-404R(H) / VP-4048R(H) to be granted access by your firewall or
proxy server. Also check if large data transmission is permitted.
• Disable proxy server settings in your browser.
6.Browsers stops responding to mouse clicks
• Too many video strings are open.
• You are opening more than one video string from the same camera.
• Your PC is too slow, upgrade your system.