I have 3 EC70 and 3 KC105 cameras that all worked flawlessly until recently. Suddenly, they all stopped recording to SD cards. I realized that they had stopped recording when I tried to play back what should have been recorded. Then I noticed that local recording was switched off, so I tried to turn it back on again, and received a message saying "No SD card detected..."

I pulled the SD cards and reinserted them several times as instructed by th very lame diagnostics support KB. Nothing changed. The cameras would no longer see the SD cards.

I plugged the SD cards into a PC and can read the recordings, but they of course all had stopped several weeks earlier. All of the SD cards were full.

I tried reformatting the cards but was unable to do so, even after installin g specific SD card formatting software from the SD SIG. The existing recordings cannot be erased from any of the SD cards.

I inserted a new SD card into one camera and it started recording normally, and I was initially able to record and play back normally. Now the app shows no recordings, even though it is set for 24/7 recording.

Since this has happened across several cameras, using different SD cards (Samsung & SanDisk) I suspect that a firmware change was pushed to the cameras, disabling the local recording function. I'm, starting to suspect that this may be intentional, as an attempt to force users to switch to paid Cloud recording. 

Has anyone here experienced this issue? Any resolution? What does TP-Link have to say? Either this gets fixed or I will report it to Amazon and return all of the cameras.

Thanks all!