Maybe the NAT router does not support the UPnP function. Please check user’s manual of router and turn on the UPnP function.
ICA-H312 is with IR feature, it has to work with IR pass lens. This kind of lens will allow the IR passed in night, but it will make the screen looks a little bit red, this is normal. Most of the IR camera will get this situation. You may select the White Balance option to fit the different light source. That will improve the display issue.
1. Wrong power line frequency makes images flicker. Make sure the 50 or 60Hz format of your device.
2. If the object is dark, the image will flicker. Make the condition around the Camera brighter.
Due to ICA-M220/M220W do not built-in speed dome motor, so it can not continue pan 360 degree. However, it offers a wide pan range to 350 degrees and tilt range of 120 degrees with 5 levels of speed where it should be enough to monitor all around the corner.
You can reset to factory default values via Web management or hold the reset button over 10 seconds on the left panel of ICA-M220/M220W.
You can use the camera utility which is contained in the User’s Manual CD to search the ICA-M220/M220W on your network.
The ICA-M220/220W supports 16 maximum concurrent users.