2.5 Reseting Wifi Settings
We can reset our existing Wifi settings on Arduino Yún. It's easy. You just press and hold
WLAN button on the board. See this button in Figure below.
The board will blink WLAN LED. Press and hold until blinking WLAN LED is stopped.
If success, Arduino Yún will back to original Wifi settings. You also see Arduino Yún AP
with SSID Arduino Yun-XXXX .