Reference; Troubleshooting - LG RNOE-B501A Owner's Manual

Reference

Troubleshooting

This section provides useful information to help you to resolve any difficulty you might have with your LG IP device.
Symptoms
Not able to recognize SD card
No recognition on
Wireless Network Card
Camera was power on but
cannot be found on IP searcher.
No image on IE
Displayed incorrect image after
login
It is ok to ping the server, but
cannot properly login
UDP unable to connect video
Video of two camera appear
alternately, or connect and
disconnect in sometime
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Disk partition information has problem, which cause no recognition, need formatting for the disk.
Loose connection, re-plug SD card and reboot the camera.
For portable disk, it may fail when there is not enough power, need to check the power supply method to make
sure enough power supply or change to use independent power supply disk.
Static turn the network card into protection state, need to reboot the camera.
Unstable condition on the network card, need to replace for new network card.
Check status of computer / host NIC, NIC driver, network wire, and network connection, make sure all are correct.
Directly connect the camera to computer / host server to check it works or not, reset the computer / host server
and try again.
Try another camera or another computer / host server
It needs to download and install the ActiveX plug-in for IE browsing at first connection.
There is other device in the some network with same IP and Mac address.
Disconnect the camera, try to ping the network to check whether there is return package.
Use the IP searcher to check whether there are devices with same IP address, then disconnect the other devices
to make sure the IP address of the camera is unique.
Public network connection, login and select the port that is mapping to other equipment' s port.
Port 3001 is banned by the firewall.
Wrong port number or user ID or password is incorrect when logging in.
Too many access to the camera. Be set in prohibit list.
Use IP searcher to check the listen port of the camera, make sure it is the same as the VMS.
Other client already connect to the camera on the same computer.
UDP port conflict with other application program on the same computer, revise camera IP address and test again.
Camera IP address conflict with other computer IP address
If conflict on MAC address, check on IP searcher.
If conflict on IP address, check on the IP searcher
Solution
Reference