Watchguard AP420 Hardware Manual page 7

Console Port
Standard RJ45 connector for serial console access.
USB Port
The USB port is currently not in use.
Reset Button
Resets the WatchGuard AP to factory-default settings. You must use a paper clip or other small object
to press the reset button through the small hole on top of the device.
To reset the device to factory-default settings, press and hold the reset button for 10 seconds until all
LEDs go off to indicate that the device has rebooted.
Hardware Guide
Hardware Specifications
5