Same problem with the RLC-520 as well. A firmware update to improve the motion detection would be most appreciated...especially given the same algorithm seemingly has been used across multiple cameras given the age of this thread.

I expected the large range of sensitivity control would allow for reducing false positives, but like others have mentioned, no matter how much tweaking is done, you simply cannot get a good balance. The sun moving in and out of the clouds triggers alerts constantly, the camera switching from day to night mode triggers an alert.....these are scenarios that should NOT produce motion alerts.

Please invest some time in updating the firmware..