3-3
Cisco Aironet 1240AG Series Access Point Hardware Installation Guide
OL-8371-05
Chapter 3 Troubleshooting 1240AG Series Autonomous Access Points
Checking Basic Settings
Checking Basic Settings
Mismatched basic settings are the most common causes of lost connectivity with wireless clients. If the
access point does not communicate with client devices, check the following areas.
Boot loader warnings
Off
Off
Yellow
Ethernet link not operational.
Red
Off
Yellow
Ethernet failure.
Amber
Off
Yellow
Configuration recovery in progress
(Mode button pressed for 2 to 3 seconds).
Off
Red
Pink
Image recovery
(Mode button pressed for 20 to 30 seconds)
Blinking green Blinking red
Blinking
pink
Image recovery in progress and Mode button is
released.
Boot loader errors
Red
Red
Red
DRAM memory test failure.
Off
Red
Blinking red
and blue
Flash file system failure.
Off
Amber
Blinking red
and
blue-green
Environment variable (ENVAR) failure.
Amber
Off
Blinking red
and yellow
Bad MAC address.
Red
Off
Blinking red
and off
Ethernet failure during image recovery.
Amber
Amber
Blinking red
and off
Boot environment error.
Red
Amber
Blinking red
and off
No Cisco IOS image file.
Amber
Amber
Blinking red
and off
Boot failure.
Cisco IOS errors
Blinking
amber
—
—
Transmit or receive Ethernet errors.
—
Blinking amber —
Maximum retries or buffer full occurred on the
radio.
Red
Red
Amber
Software failure; try disconnecting and
reconnecting unit power.
—
—
Amber
General warning, insufficient inline power (see the
Low Power Condition
section).
Table 3-1
LED Signals (continued)
Message type
Ethernet LED
Radio LED
Status LED
Meaning