SC2 suddenly not working

My computer can not see the SC2 camera. The "DL Config utility" only sees the STC7 camera.
Last week when I did the Sky Flats, everything was fine. Sunday evening I went to take some Dark Frames I noticed that in the "Camera2" information window, it was telling me that the Cooler was on. Further checking shows that Camera 1 & 2 displays the same size image (1608 x 1104 ) (STC-7 bin2). The Device Manager shows that the SBIG cameras A & B are grayed out.

What I have checked is:
1: Checked the USB ports in the Device Manager to make sure they are not turned off.
2: The green light for the power supply is on for both units.
3: Swapped the USB camera cables to the ports on the computer.
4: Swapped power cables to the cameras.
5: Rebooted the computer.
6: Unplugged the AO-8A from the SC2

Since Adam got my AO-8 working in the middle of August, This setup has run flawless. Now all of sudden this???

 

I reversed the USB cables into the computer, so the USB port that the STC7 was plugged into (that is working) is the port that the SC 2 is now plugged into. I also tried a different USB cable from the SC2 to the computer. Both LED power lights are on. I switched the power cables at the cameras. I checked the pins on the power plug and found none that's bent.

 

I plugged in the Ao-8A. The red LED next to the power co9rd is NOT on.

 

I checked to make sure the light is not disabled. The STC7 itself works. I hear the click roughly 4 to 5 seconds after the power is turned on. The fan starts up and I hear it rotating the filter wheel. It will take images.

 

I would have to say no. Yesterday when I was trying to isolated which power supply was powering which camera,

I plugged in one power supply at a time. The first one started the STC7, the fan starts up, MaximDL sees it & I can take an image.
I unplug that one & plug in the other, and nothing happens. Maxim sees nothing.

 

I see no LED light. I did try the other power supply, #4 in my first post.

 

No, I did not change the extension cord. But logic tells me that if the STC camera has power, and I unplug the cable from the STC camera and then plug it into the SC2, then the SC2 should have power. The plug that was in the SC2, I plugged into the STC, and the STC does power up.
But I will go out and remove the extension cord(s) to see if that will work.

 

Okay, I removed the extension cord. Plugged in the power supply into the SC2. Turned the power on, the Green LED comes on and DL Config doesn't see it. View attachment 12269

 

I'm going to take it apart. I just looked at it appears that the power socket is loose. I assume that I need to send it to the address that is listed in the Appendix D portio0n of the users manual.

 

No, Not snagged. I have the cables running through a wire loom that is supported so there is no tension on any of the connectors (Power, USB). I do have sort of a heavy hand but I always try to be somewhat careful
with small electrical connectors. I know better then to force items, but obviously I wasn't as gentle as I needed to be. Strange thing is that the SC2 power plug always fit great. It's the STC 7's power socket that from day one, fits so loose that It seems like it's going to fall out.