D-Link DCS-5222LB1 - The images are poor quality, how can I improve the image quality?; Why are no images available through the Web browser?; The PIR is not operating well, how can I improve the PIR quality?

72D-Link DCS-5222LB1 User Manual
Section 6 - Troubleshooting
- The PIR functions at best when detecting lateral movements. Radial movements cannot be detected as well as lateral movements.
- Do not install this camera directly under an extreme bright light. The PIR cannot fully suppress a bright white light.
- Any movements from an object with a normal body temperature, like humans or animals, can be
detected. To avoid any malfunctions, install this camera at the proper height.
- To avoid any malfunctions, install this camera in an environment with an average temperature of 25°C. Only within
a distance of 2.5 meters can smaller movements of an object, with the average adult human’s height, be detected.
Between a distance of 2.5 and 5 meters, a larger movement of an object is required for detection.
- Install this camera on a rm, static, anti-shock surface.