I jjust installed the last two cameras on my hikvision NVR. The 2 cameras are DS-2cd2543go-is the rest are not. I called HIKvision and they told me they can’t/won’t fix it over the phone and to call a installation technician. I am capable of doing anything a tech can do but lack the troubleshooting knowledge to fix the problem. I got a feeling it have to look into the firmware or OS of the cameras but I don’t know how to do that.