fenderman, thanks. I can't think how the problem could be the cables--unless there was suddenly some deterioration (instantly, the minute the new NVR was installed).
The original camera system worked perfectly for nearly three years until two of the cameras developed problems with their IR. The security company replaced the system--but installed an older model NVR with newer model cameras (that fact was pointed out by people on this thread).
Now they've installed a DS7604 NI-K1/4P with 3x 4 MP 2DS-2CD2342WD-I cameras. My question, I suppose, is, once again: are these components compatible?
The original camera system worked perfectly for nearly three years until two of the cameras developed problems with their IR. The security company replaced the system--but installed an older model NVR with newer model cameras (that fact was pointed out by people on this thread).
Now they've installed a DS7604 NI-K1/4P with 3x 4 MP 2DS-2CD2342WD-I cameras. My question, I suppose, is, once again: are these components compatible?