Installation Guide

Draft 1A - CISCO CONFIDENTIAL
6-4
Cisco Aironet 1240AG Series Access Point Hardware Installation Guide
OL-7293-01
Chapter 6 Troubleshooting
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.
Default IP Address Behavior
When you connect a 1240 series access point running Cisco IOS Release 12.3(4)JA or later software with
a default configuration to your LAN, the access point requests an IP address from your DHCP server
and, if it does not receive an IP address, continues to send requests indefinitely.
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).
Message type
Cable Bay Area Top of Unit
MeaningEthernet LED Radio LED Status LED