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Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Linux
OL-1376-02
Chapter 8 Troubleshooting
Determining the Driver Version and Client Utility Release
Determining the Driver Version and Client Utility Release
To determine the driver version, select Status from the Commands pull-down menu in ACU. The driver
version is displayed in the Status screen.
Follow these steps to determine the client utility release:
Step 1 Open the ACU.
Step 2 Select the Commands tab and click About.
In the output returned, the ACU version is indicated by v.xx, which appears before the date/time stamp.
Problems after Installing the Driver
Note If you experience problems during driver installation, you might want to restart the installation process.
Go to the “Uninstalling the Driver and Client Utilities” section on page 7-5 to start with a clean install.
Follow the instructions in this section if you experience difficulty with your client adapter after installing
the driver (for instance, your computer repeatedly freezes at the network login screen, the green LED
does not blink to indicate that the adapter is active, etc.).
Client Adapter Recognition Problems
If your client adapter is not being recognized by your computer’s PCMCIA adapter, check your
computer’s BIOS and make sure that the PC card controller mode is set to PCIC compatible.
Note A computer’s BIOS varies depending on the manufacturer. For support on BIOS-related issues, consult
your computer’s manufacturer.
Problems Associating to the Access Point
Follow these guidelines if your client adapter fails to associate to the access point.
• If possible, move your workstation a few feet closer to the access point and try again.
• Make sure the client adapter is securely inserted in your computer’s PC card slot or PCI expansion
slot.
• If you are using a PCI client adapter, make sure the antenna is securely attached.
• Make sure the access point is turned on and operating.
• If you have access, check the access point’s console to see if it is returning any error messages.
- 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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