Try these steps:

1. Install at 2.2-2.4m (7.2-7.9 ft) height, 10-20 degree downward tilt. Position so movement crosses the field of view. Avoid walls or glass causing glare

2. In Detection settings, increase sensitivity to "5-7"

3. In Power Manager > Working Mode, select "Optimal Surveillance" and enable "All Other Motions"

4. Make sure your camera is connected to a HomeBase, or has an SD card inserted and formatted

5. In Activity Zones, confirm your zone covers active areas and that no key areas are set as privacy zones

If the issue persists:

Please contact support with the time it happened, a live view screenshot, and activity zone photos.

If you have any other questions, please don't hesitate to contact eufy Support Engineers for further assistance.