Hi. I have an Annke N46NPK 16 channel NVR - I am unsuccessful in adding cameras to the NVR. My IT guy cannot work it out either. We can get cameras (Onvif) to connect to the network via a Poe switch and then can view them through the nvr monitor but nvr cannot recognise camera either by plug n play or manual method. The camera is getting power when plugged into NVR. Spent many many hours now on this and hopefully someone has had similar problem and worked it out!