When your camera is on you will see faint red lights around the black lens. You will also be able to access live stream, this confirms that your camera is connected and online.
During wifi set up a green light will appear on the back of the camera this light turns blue once your camera connects to the network. The blue light will then turn off once wifi setup has completed. If your camera ever looses wifi and reboots this green light will reappear on the back of your camera.