lola2001

I have 4 standard bullet cameras and 2 PTZ cameras from Lorex. They are all hard wired to an NVR. I've had this system for about 3 years and it worked perfectly. Recently I noticed that all of the cameras lost night vision. I rebooted the NVR and removed and reinserted each wire. Still the same. I called Lorex for help and they did some troubleshooting on the PTZ camera and insisted it was a camera issue and sent me a new one. Of course it is not and that did nothing. I called them again and asked if it was an issue with the NVR and they told me no way, not possible. So basically they have no clue. Since then 2 of the bullet cameras have become very fuzzy like an old black and white movie with the lines running across it. My question is, what is causing this? Is it the NVR itself or the wires going to the NVR are maybe damaged outside? The cameras look perfect in the daytime btw. I just need a little guidance so I know what to replace. Thank you.

I currently have a Foscam outdoor PTZ dome camera. It's a piece of crap and I need to replace it. I was thinking of a Lorex system however I just have a couple of questions about dome cameras in general. Why do some PTZ cameras require a power source and others are POE? I thought POE could only work on non PTZ cameras? Do I need a NVR or DVR in order to see my cameras remotely from my cell or a computer? And if not, can anyone tell me what I DO need? My Foscam is an IP camera that is suppose to be viewable on an app on my phone but it only ever worked for a couple of days and then not since then. Foscam customer service is bad, I want to buy a system from a reliable company with good customer service. Any advice on this? Thank you for your time L