I've had few issues with my wired PTZs. I've found I need to restart a couple maybe weekly. I lost IR ability on another one. As a quick fix, I installed a bank of IR lights to light up the yard. I lost communication ability on another. That one continues to patrol. I took it down and have to find out what failed. My Hikvision NVR uses wires 4&5 verified with a network analyzer. The cam tries to light 4&5 up but not as bright. So far, no perps can avoid the other red IR eyes on them in the same view. The camera in the video is a tracking cam. It pauses between movement and tracks if necessary. Then the patrol resumes. Thanks for sharing your suggestions. I don't visit this website often. Jim