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Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Linux
OL-1376-02
Chapter 8 Troubleshooting
Accessing the Latest Troubleshooting Information
Accessing the Latest Troubleshooting Information
This chapter provides basic troubleshooting tips for your client adapter. For more up-to-date and
complex troubleshooting information, refer to the TAC web site at http://www.cisco.com/tac. Select
Wireless Technologies under Top Issues.
Using the Indicator LEDs
The client adapter shows messages and error conditions through its two LEDs:
• Link Integrity/Power LED (green)—This LED lights when the client adapter is receiving power
and blinks slowly when the adapter is linked with the network.
• Link Activity LED (amber)—This LED blinks quickly when the client adapter is receiving or
transmitting data and blinks in a repeating pattern to indicate an error condition.
Table 8-1 interprets the LED operating messages.
Table 8-1 LED Operating Messages
Green LED Amber LED Condition
Off Off Client adapter is not receiving
power or an error has occurred
Blinking quickly Blinking quickly Power is on, self-test is OK, and
client adapter is scanning for a
network
Blinking slowly Blinking quickly Client adapter is associated to an
access point
Blinking slowly Blinking quickly Client adapter is transmitting or
receiving data while associated
to an access point
Off Blinking quickly Client adapter is in power save
mode
On continuously Blinking quickly Client adapter is in ad hoc mode
Off On Driver installed incorrectly
Off Blinking in a pattern Indicates an error condition
- Guide for Linux 1
- CONTENTS 3
- Contents 4
- 5 Advanced Configuration 5-1 5
- 6 Diagnostics 6-1 5
- 7 Routine Procedures 7-1 5
- 8 Troubleshooting 8-1 6
- Japanese Translation D-7 7
- English Translation D-7 7
- Audience 10
- Organization 10
- Conventions 11
- Attention 12
- Avvertenza 12
- Advarsel 12
- Related Publications 13
- Obtaining Documentation 13
- Ordering Documentation 14
- Documentation Feedback 14
- Cisco.com 14
- Technical Assistance Center 15
- Cisco TAC Escalation Center 16
- Overview 17
- Terminology 18
- Parts of the Client Adapter 19
- Chapter 1 Overview 20
- Ad Hoc Wireless LAN 21
- Site Survey 22
- Preparing for Installation 25
- Safety Information 26
- Unpacking the Client Adapter 27
- System Requirements 27
- Site Requirements 28
- PCMCIA Installation 32
- Enter (Figure 3-3) 33
- Figure 3-7 Make All Screen 37
- Option 1 for Red Hat Systems 38
- Option 2 for Red Hat Systems 39
- Verifying Installation 41
- Inserting a PC Card 42
- Additional Procedures 44
- Opening the Client Utilities 46
- Selecting the Radio 47
- Enabling LEAP 52
- Using the Bcard Utility 53
- Finishing the Installation 54
- Enabling Security Features 55
- Server-Based Authentication 56
- Getting Started 56
- Changing the Password 56
- Entering a New WEP Key 57
- Selecting an Existing WEP Key 59
- Enabling WEP 59
- Message Integrity Check (MIC) 60
- Advanced Configuration 63
- Setting Enterprise Parameters 65
- Table 5-2 System Parameters 66
- Network Type Description 67
- Authentication Description 69
- Setting RF Network Parameters 71
- Data Rate Description 72
- Diagnostics 83
- Chapter 6 Diagnostics 85
- Receive Statistics 90
- Transmit Statistics 91
- Routine Procedures 93
- Ascertaining the ACU Version 94
- Selecting a Help Browser 95
- Loading New Firmware 95
- Uninstalling Manually 97
- Removing a PC Card 99
- Removing a PCI Client Adapter 99
- OL-1376-02 100
- Removing the Client Adapter 100
- Troubleshooting 101
- Using the Indicator LEDs 102
- Getting Help 104
- (Figure 8-3) 105
- Technical Specifications 107
- Power output 109
- Receiver sensitivity 109
- APPENDIX 113
- Channel Sets 114
- Translated Safety Warnings 117
- Warning for Laptop Users 119
- ¡Advertencia! 120
- Varning! 120
- Information 121
- Tested To Comply 122
- With FCC Standards 122
- FOR HOME OR OFFICE USE 122
- Canadian Compliance Statement 123
- Liechtenstein 124
- Japanese Translation 127
- English Translation 127
- GLOSSARY 129
- Glossary 130
- OL-1367-02 130
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