Hardware
See the Quick Start Guide for hardware installation and connections.
Zyxel Device Single LED
The LED of the Zyxel Device can be controlled by using the suppression feature such that the LEDs stay lit (ON) or OFF after the Zyxel Device is ready. Refer to LEDs for the LED Suppression and Locator menus in standalone mode.
Zyxel Device LED
The following are the LED descriptions for the Zyxel Device.
Zyxel Device LED 
Color
status
description
Amber
Blinks amber for 1 second and green for 1 second alternatively.
The Zyxel Device is booting up or is connecting with NCC.
Green
Amber
Blinks amber and green alternatively 3 times and then turns solid green for 3 seconds.
The Zyxel Device is discovering the NCC or an AC.
Green
Amber
Blinks amber and green alternatively 2 times and then turns solid green for 3 seconds.
The Zyxel Device is managed by an AC but the uplink is disconnected.
Green
Green
Slow Blinking (On for 1 second, Off for 1 second)
The wireless module of the Zyxel Device is disabled or fails, the Zyxel Device is using default wireless settings, or the Zyxel Device is configured to be managed by NCC but is not yet registered with the NCC.
Green
Steady On
The Zyxel Device is ready for use, the Zyxel Device’s wireless interface is activated, and/or wireless clients are connected to the Zyxel Device.
Bright Blue
Steady On
The Zyxel Device’s wireless interface is activated, but there are no wireless clients connected.
Blue
Slow Blinking (Blink for 1 time, Off for 1 second)
The Zyxel Device is performing a Channel Availability Check (CAC) with Dynamic Frequency Selection (DFS) to monitor a channel for radar signals.
Red
On
The Zyxel Device failed to boot up or is experiencing system failure.
Fast Blinking (On for 50 milliseconds, Off for 50 milliseconds)
The Zyxel Device is undergoing firmware upgrade.
Slow Blinking (Blink for 3 times, Off for 3 seconds)
The Uplink port of the Zyxel Device in standalone mode is disconnected.
 
Note: The NWA55AXE does not have LED.