At one point I had 5 cameras that I was able to see video from. Then one afternoon all were lost. I thought that the hot garage took out my POW switch so I got a new one but still wont connect to the camera. I reset the NVR to factory defaults and tried again and still no connections. I can see the active cameras on the camera set up page. I plug in my cameras IP address and port to 8000 and video type to OHV into one of the default HKvision POE slots but still no connection.