Reach M+ has three LEDs which are used as status indicators for three different parts of the system.
This LED lights up when Reach is connected to a power source.
During boot, Reach M+ enters a network scan state in which it will try to connect to any known Wi-Fi networks it can find. This might result in connecting to a previously added network or creating its own hotspot.
Stat LED is used to display ReachView 3 status.