I am the original author of this thread and I thought I would give some feedback on my original issue. So, I did test all 4 camera cards and they all passed the recommended testing. Now, I have not...

I was able to update all four of my cameras to firmware version 2.3.14 without any issues. All previous recordings were preserved. Hmmm... the navigation seems to be a bit faster now... or is it just...

It looks like this firmware update 2.3.14 may help fix some of our "camera stops recording" problems. You can view the changelog information by clicking the "i circle" to the right of the camera.

Well, I just received a request from TP-Link support to install debugging firmware in all four of my KC-401 cameras and I am respectfully declining to do that because it sounds like this debugging...

OK, I will do the card test and send the results when they are completed; however, I do not have the proper card reader to do the test right now so I had to order a new one from Amazon.com. It should...

@Solla-topee Hello again, The four cameras are permanently mounted with screws into walls and other surfaces. I will not demount them to try and obtain the SNs. The San Disk 32GD Max Endurance cards...