Useless as a security camera. Sorry!

I bought 5 of these cameras a few weeks ago, and have been impressed by the seemingly good price / performance ratio. Installation is relatively simple to perform and safe, with good lighting conditions, the camera via WLAN good pictures as soon as it gets dark but it is definitely over. No problem, since one can ensure automatic lighting. The images are processed and stored on a NAS from Synology. (If because an image is transferred!)

Now comes the very GROOOOOSSE shortcoming:
The cameras continually lose, partly after hours, contact the WLAN and then deliver to a restart of the cameras any more images.
Only after pulling the Netztsteckers and re-plugging the camera log in again and then may work for hours or even a few days at best.

Even adjusting the network encryption as specified by the Edumax services brought no improvement.

*** Unfortunately, this is the killer for a surveillance camera ***

Annoying if you are traveling, and suddenly there is no access to the cameras more.
... And just to mess around the cameras are then again too expensive.