Qsee/Dahua Multiple Failure?

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I have/had 6 Qsee Branded QCN7001B 3.1MP "270P" IP cameras, directly connected to a POE switch and recording to blue iris.

Last week, I noticed the occasional "camera offline" but they normally would come back up the next day. Well Sunday morning I went to check on things and... 5/6 cameras are unresponsive.

Here is what I have tried:
-Verified good cabling / replaced cabling on two cameras.
-Tried using a POE adapter instead of the switch
-Tried the working POE camera on the POE adapter (it worked).
-Using the POE adapter on the non working camera:
--Power cycled the camera a few times.
--Tried connecting directly to the camera via its last known static IP.
--Tried Scanning for the Camera using PSS, The Dahua Config tool, and Angry IP Scanner.
--Tried connecting to 192.168.1.108
--Pressing the Reset button on the camera with the camera off.
--Pressing the Reset button on the camera with the camera on.
--Pressing the Reset button on the camera and turning the camera on (Power on reset).
--My network is normally 192.168.1.X IP with 255.255.255.0 Mask and 192.168.1.1 Gateway.
--Changing the IP to 10.1.1.2
--Changing the Mask to 255.0.0.0
--Changing the Mask to 255.255.0.0
--Changing the Mask to 255.255.255.255
--Scanned 10.0.0.0-10.2.0.0, 192.168.0.0-192.168.3.0, and various others.
--Doing all of this with the camera and laptop hooked directly into a separate switch.
--Repeated this all twice (two cameras).

I even went so far as to disassemble a camera and look for some lights or something.

So far I haven't been able to get anything to work. We had some storms last week, and and ISP outage, I just cant believe 5/6 cameras would die all at once. PPS and Config tool can find the cameras even if there is an IP/Mask Mismatch correct? I tried with all the masks I could think of but couldn't figure it out.

If you have any ideas, let me know. Please provide detailed instructions.
 

fenderman

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@RAGGEDREBEL92 when you connected the camera and pc to the switch what ANYTHING ELSE ATTACHED?
Did you use a standard store bought cable?
Did you set your pc's ipv4 address to match the cameras subnet?
 
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@fenderman

Setup1:
Buffalo 16 Port POE un-managed switch
2x Startech 7Ft cat6 cable
Camera
Laptop

Setup2:
Generic 4 Port Switch
Qsee Branded POE injector
2x Startech 7Ft cat6 cable
Camera
Laptop

The one working camera works fine with both of these setups. I am able to connect to them fine.

I set my computers IP address to either 192.168.1.23, 192.168.0.23, or 10.1.1.23 - I dont know what the cameras IP or Subnet is currently, so I just took some guesses from what I could google.
 
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