@pjaguilar 

Is that the latest status of your camera? According to the information on this thread, they has resolved the problem. https://community.tp-link.com/en/smart-home/forum/topic/590230  My camera is working now anyway. 

  @Riley_Blue Thank you very much for the link, tried again, and voila!!! The boot loop stopped.

BUT, alas, Tp-link does not offered any insight about what happened. I'm very worried about this, we don't know if this was a massive hacking event, or Tp-Link itself sent a "kill command" of sorts to all of our NC450's... Why they can control our devices in such a way is beyond me. (the firmware itself is 2 years old!!)

Very very strange.

Again, thank you very much!!!!!

Best regards, PAblo.

  @pjaguilar Well, the more i think about this, the more worried i become.

It was not a Tp-link cloud service error. Why? Because the error kept happening even with a factory reset (and before login in to the service).

So, with any theory (external attack or internal "error"), the devices are communicating with Tp-Link even when the device is not registered with the cloud service.

THIS IS A HUGE SECURITY / PRIVACY issue!!!!

Can someone from Tp-Link explain to us why this happened?

I repeat, this is HUGE.

For now i've replaced the Tp-Link cameras, and i'm very worried about plugging them again. It's a shame, because they are very good.

And this is a firmware-related issue, because it started happening when most of us upgraded to firmware 1.5.6. (and the fact that you cannot downgrade the f***ng firmware, is VERY SUSPICIOUS to say the least).

Best regards, PAblo.

PS: the fact that the devices are "old" (they are not THAT old LOL), has nothing to do, even if the devices don't qualify for cloud services, that is not a reason to not being able to use them locally. And is CERTAINLY not a reason for the camera communicating with Tp-Link services without us knowing!!