Issues with Dahua Cameras

I have two of the following types of Dahua POE Cameras

Device Type IPC-HDBW4433R-ZS

System Version 2.621.0000.28.R, Build Date: 2017-09-12

Both cameras have Ethernet cables (100 ft is longest) run back to the POE Switch.

1 camera has been ROCK SOLID for 6 years now. Never an issue. Its always on and accessible

The second camera, or camera location, has been a nightmare and hoping someone might have an idea of what is going on. I have had two of the same camera types up there as I thought the first one was bad, but the second does the same thing. The camera just drops offline and doesnt come back sometimes for weeks / months. Its really hard to get to the camera due to needing a high ladder, so only really accessible in summer. No rhyme or reason. Some other details

  • The first camera ended up having corrosion in the ethernet port on the camera.
  • Second camera that is there now I made sure the weather protector is on like fort knox and still the camera will come on for a few days then disappear for a long while.
  • I have replaced the 100 ft cat 6 cable twice. The first two times were cables I made, the third time (now) there is a pre-bought 100 ft outdoor cat 6 cable run to it.

When its on, its fine....its just off most of the time......

Anything I can check on the camera when its on?

I have the same camera on the other side of my house that has same weather protector on it and is in teh same elements outside and its NEVER not worked. I replaced everything on the second side and still have same issues.
check the camera's needs in Watts and the power supplied PER CHANNEL from the POE switch. There is a possibility that the switch will cut off the camera, for security reasons or routing prioritization, also if the camera requires, for example, 8 watts to operate, then the switch must be able to provide almost twice that per channel for the distance of this cable.
 
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Why is my front camera, installed the same way with same weather protector, never had an issue? Bad luck?

I guess I can get up there in the spring and do it again with some dielectric grease.
There is some luck no doubt, one of mine which had corrosion was totally random in how or when it would work. Had another similarly exposed without grease and it still continues to behave now! The takeaway is always use dielectric grease, nobody wants to install a camera twice, let alone a PTZ high on a wall, or worse up a pole!

Sounds like from your comment above #19 that the network camera connector has corrosion, will either need cleaning or replacing. You said all 8 wires show good, did you test both ends?
 
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