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UniFi - What do the LED Color Patterns Represent for UniFi Devices?

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 Overview


Readers will learn to identify the different states for UniFi devices based on their status LED patterns. 

Table of Contents


  1. Access Points, Security Gateways, Switches and Cloud Keys
  2. White and Blue LED
  3. Legacy Amber and Green LED
  4. Ports
  5. PoE Adapters
  6. Related Articles

Access Points, Security Gateways, Switches and Cloud Keys


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Starting with Gen2 UAPs, we moved on to the Blue and White LED. USGs, UniFi Switches and Cloud Keys also use the same Blue and White LED patterns showcased in the table below, and they will mean the same thing. Legacy UAPs will have an Amber and Green LED on the front of the unit as seen in the Legacy section. Some products don't feature status LED patterns, such as the PoE Adapters.


White and Blue LED


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White and Blue LEDs apply to: 

Access Points UAP-PRO, UAP-Outdoor+, UAP-AC, UAP-AC-OD, UAP-IW, UAP-AC-LITE, UAP-AC-LR, UAP-AC-PRO, UAP-AC-HD, UAP-AC-EDU
Routing & Switching Cloud Key: UC-CK
Security Gateways: USG, USG-PRO-4
Switches: US‑24‑250W, US‑24‑500W, US‑48‑500W, US‑48‑750W, US‑24, US‑48, US‑8, US‑8‑60W, US‑8‑150W, US‑16‑150W, US‑16‑XG

 

 Device Activity

LED Pattern

Initializing

AP is Booting

Flashing White / Off Every 1/2s

Factory Defaults

AP is Awaiting Adoption

Steady White

Adopted

AP is Broadcasting SSIDs;
Normal Operating Mode

Steady Blue

Initialization Error A12

Power Cycle AP and Contact Support if Recurring

 

Strobing White / Off

Firmware Upgrade

AP is Busy with Upgrade
DO NOT INTERRUPT!

Quickly Flashing White / Blue

Isolated

AP Lost Network Connectivity,
Searching for Wireless Uplink

Blue and Flashing Off Every 5s

Locating

The AP Locate Feature was Activated in Controller or the UniFi AC EasySetup App

Rapid Flashing Blue / Off

TFTP Mode

The device is in TFTP mode, which is triggered by holding the reset button before applying power, then continuing to hold reset until this White/Blue/Off/repeat sequence is seen. If this is not intentional, check and see if the reset button is jammed, it should click when pushed. 

UAP-AC-TFTP.gif

Flashing White-Blue-Off 

Device Offline

Verify Power, POE and Ethernet Cable

LED Off

 


Legacy Amber and Green LED


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Applies to: UAP, UAP-LR, UAP-Outdoor5.

Device Activity

LED Pattern

Initializing

AP is Booting

Flashing Amber / Off Every 1/2s

Factory Defaults

AP is Awaiting Adoption

Steady Amber

Adopted

AP is Broadcasting SSIDs;
Normal Operating Mode

Steady Green

Initialization Error A12

Power Cycle AP and Contact Support if Recurring

 

 

Strobing Amber / Off

Firmware Upgrade

AP is Busy with Upgrade
DO NOT INTERRUPT!

Quickly Flashing Amber / Green

Isolated

AP Lost Network Connectivity,
Searching for Wireless Uplink

Green and Flashing Off Every 5s

Locating

The AP Locate Feature was Activated in Controller or the UniFi AC EasySetup App

Rapid Flashing Green / Off

Device Offline

Verify Power, POE and Ethernet Cable

LED Off


Ports


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The various UniFi Security Gateways and UniFi Switches will have a different type, number and location of ports, please be sure to reference your specific model's Quick Start Guide (pages ~5-6, under the Hardware Overview section) for the exact location and description of its ports. 

Console Port's right LED (in the applicable devices):

  • LED Off: Power Off
  • LED Green: Power On 

Speed/Link/Act (right LED ports other than Console):

  • LED Off: No Link
  • LED Amber: Link Established at 10/100 Mbps
  • LED Flashing Amber: Link Activity at 10/100 Mbps
  • LED Green: Link Established at 1000 Mbps
  • LED Flashing Green: Link Activity at 1000 Mbps

PoE (left LED on ports of applicable devices):

  • LED Off: No PoE
  • LED Amber: IEEE 802.3af/802.3at
  • LED Green: 24V Passive

SFP (in the applicable devices):

  • LED Off: No Link
  • LED Green: Link Established at 1 Gbps
  • LED Flashing Green: Link activity at 1 Gbps

See specific port LED information in the Hardware Overview section (between pages 5 and 6) of the Quickstart Guides. You can find the QSG at the bottom of each product page of the USGs and Switches in the Routing & Switching section of the UniFi Product page


PoE Adapters


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The LED of the PoE Adapters are simple to interpret:

LED is Off - PoE is Off

LED is On and steady - PoE is functioning as it should

LED is blinking - this is not a configured state, this just might mean the device is not connected properly, or that something is wrong with the cable.