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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-29225-01
Chapter 22 Troubleshooting
Checking the Top Panel Indicators
Note It is expected that there will be small variations in LED color intensity and hue from unit to unit. This is
within the normal range of the LED manufacturer’s specifications and is not a defect.
Operating status Green — — Ethernet link is operational.
Blinking green — — Transmitting or receiving Ethernet packets.
— — Blinking green Transmitting or receiving radio packets.
— Blinking blue — Software upgrade in progress.
Blinking green Blinking green Blinking green Access point location command.
Boot loader warnings Off Blinking red Off Ethernet link not operational.
Red Red Off Ethernet failure.
Amber Blinking blue Off Configuration recovery in progress
(Mode button pressed for 2 to 3 seconds).
Off Red Red Image recovery
(Mode button pressed for 20 to 30 seconds).
Blinking green Blinking green Red Image recovery in progress and Mode button is
released.
Boot loader errors Red Red Red DRAM memory test failure.
Off Blinking red
and blue
Red Flash file system failure.
Off Alternating red
and green
Amber Environment variable (ENVAR) failure.
Amber Rapid blinking
red
Off Bad MAC address.
Red Blinking red
and off
Off Ethernet failure during image recovery.
Amber Blinking red
and off
Amber Boot environment error.
Red Blinking red
and off
Amber No Cisco IOS image file.
Amber Blinking red
and off
Amber Boot failure.
Cisco IOS errors Blinking amber — — Transmit or receive Ethernet errors.
— — Blinking amber Maximum retries or buffer full occurred on the
radio.
Red Off Red Software failure; try disconnecting and
reconnecting unit power.
— Cycle through
blue, green,
red, and off
— General warning, insufficient inline power
Table 22-3 1040 or 1140 Series Access Point LED Signals (continued) (continued)
Message type Ethernet LED Status LED Radio LED Meaning