User's Manual
22-12
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-11350-01
Chapter 22 Wireless Device Troubleshooting
 Checking the Top Panel Indicators
The access point/bridge uses a blinking code to identify various error conditions. The code sequence uses 
a two-digit diagnostic code that starts with a long pause to delimit the code, followed by the LED 
flashing red to count out the first digit, then a short pause, followed by the LED flashing red to count out 
the second digit. 
The LED blinking error codes are described in Table 22-5.
Red Amber Red — Loading Firmware error—disconnect and reconnect the power injector 
power. If the problem continues, contact technical support for 
assistance.
— — Off — Normal operation.
— — Blinking 
green
— Transmitting and receiving radio packets—normal operation.
— — Blinking 
amber
— Maximum retries or buffer full occurred on the radio 
interface—disconnect and reconnect the power injector power jack. If 
the problem continues, contact technical support for assistance.
— — Amber — Radio firmware error—disconnect and reconnect power injector 
power.If the problem continues, contact technical support for 
assistance.
———Amber 
blinking
Not associated (non-root mode). The access point/bridge attempts to 
associate with a root bridge for 60 seconds
1
.
— — — Amber Associated (non-root mode).
— — — Green 
blinking
Not associated (root mode). The access point/bridge attempts to 
associate with a non-root bridge indefinitely.
— — — Green Associated (root mode).
— — — Red Overcurrent or overvoltage error—disconnect power to the power 
injector, check all coax cable connections, wait approximately 1 
minute, and reconnect power. If error continues, contact technical 
support.
1. Preconfigured bridges search indefinitely.
Table 22-4 LED Indications (continued)
Ethernet 
LED
Status
LED
Radio
LED
Install
LED
Meaning
Table 22-5 LED Blinking Error Codes
LED
Blinking Codes
Description
First 
Digit
Second 
Digit
Ethernet 2 1 Ethernet cable problem—verify that the cable is properly connected 
and not defective. This error might also indicate a problem with the 
Ethernet link. If the cable is connected properly and not defective, 
contact technical support for assistance.










