A blinking LED indicates the following status:

Fast blinking: Your camera is in setup mode. You can add the camera to your account in this mode. Out of the box, the camera is in setup mode. To reset to setup mode, press and hold the RESET button on the bottom of the camera until you hear a long beep.

Slow blinking: The camera is either connecting to the router or lost the link to the router. Please ensure that the camera is in the Wi-Fi signal range. 

LED is stable: The camera is connected to the Wi-Fi network.