I am new to this and am not sure if I am missing something with the config, or the camera's are just not working like I expect. I purchased a few DH-IPC-HDB4300C's and one of them, it seems that the IR functionality does not seem to be working. 3 of them go to B&W when the room goes dark, the last one doesn't, as if the IR LED's don't turn on. well I just bought a DH-IPC-K100W and it is acting the same way. Any help would be appreciated to help me figure this out and get the camera's working