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This chapter provides general information for diagnosing and correcting common problems encountered when installing or operating a Cisco Aironet Wireless LAN Adapter as well as procedures for performing routine operations.
The following topics are covered in this section:
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 LAN under "Top Issues."
The client adapter shows messages and error conditions through its two LEDs:
Table 4-1 interprets the 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. |
Continuously on or blinking slowly | Blinking | Client adapter is transmitting or receiving data while associated to an Access Point. |
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Off | Blinking quickly | Client adapter is in power save mode. |
On | Blinking quickly | Client adapter is in ad hoc mode. |
Off | On | Driver installed incorrectly. |
Off | Blinking in a pattern |
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Note If you experience problems during driver installation, you may want to restart the installation process. Go to the "Removing the Driver" section 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.).
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.
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Note A computer's BIOS varies depending on the manufacturer. For support on BIOS-related issues, consult your computer's manufacturer. |
If your computer's operating system is MacOS 9.x, verify that the driver (pcm3x0) and enablers (pcm3x0Enabler) are installed. They should be in the Extensions folder of the System folder.
If you experience a problem after attempting to install the driver for Windows CE, some necessary files may be missing.
If you encounter problems while installing your client adapter on a computer running a Windows operating system, you may need to specify a different interrupt request (IRQ) or I/O range for the adapter.
During installation the adapter's driver installation script scans for an unused I/O range. The installation can fail if the I/O range found by the driver installation script is occupied by another device but not reported by Windows. An I/O range might not be reported if a device is physically present in the system but not enabled under Windows. Follow the steps for your specific operating system to obtain an available I/O range.
Step 2 Select the Cisco Systems wireless LAN adapter.
Step 3 Click the Properties button.
Step 4 In the General screen, the Device Status field indicates if a resource problem exists. If a problem is indicated, click the Resources tab.
Step 5 Deselect the Use automatic settings checkbox.
Step 6 Under Resource Settings or Resource Type, click Input/Output Range.
Step 7 Look in the Conflicting Device list at the bottom of the screen. If it indicates that the range is being used by another device, click the Change Setting button.
Step 8 Scroll through the ranges in the Value dialog box and select one that does not conflict with another device. The Conflict Information window at the bottom of the screen indicates if the range is already being used.
Step 9 Click OK.
Step 10 Under Resource Settings or Resource Type, click Interrupt Request.
Step 11 Look in the Conflicting Device list at the bottom of the screen. If it indicates that the IRQ is being used by another device, click the Change Setting button.
Step 12 Scroll through the IRQs in the Value dialog box and select one that does not conflict with another device. The Conflict Information window at the bottom of the screen indicates if the IRQ is already being used.
Step 13 Click OK.
Step 2 Select the Cisco Systems wireless LAN adapter.
Step 3 In the General screen, the Device Status field indicates if a resource problem exists. If a problem is indicated, click the Resources tab.
Step 4 Deselect the Use automatic settings checkbox.
Step 5 Under Resource Settings or Resource Type, click Input/Output Range.
Step 6 Look in the Conflicting Device list at the bottom of the screen. If it indicates that the range is being used by another device, click the Change Setting button.
Step 7 Scroll through the ranges in the Value dialog box and select one that does not conflict with another device. The Conflict Information window at the bottom of the screen indicates if the range is already being used.
Step 8 Click OK.
Step 9 Under Resource Settings or Resource Type, click Interrupt Request.
Step 10 Look in the Conflicting Device list at the bottom of the screen. If it indicates that the IRQ is being used by another device, click the Change Setting button.
Step 11 Scroll through the IRQs in the Value dialog box and select one that does not conflict with another device. The Conflict Information window at the bottom of the screen indicates if the IRQ is already being used.
Step 12 Click OK.
Step 2 Click the Resources tab.
Step 3 Click the IRQ button.
Step 4 The used IRQs are listed in numerical order along the left side of the Resources window. Write down the number of an IRQ that is not being used; you will need it for Step 11.
Step 5 Click the I/O Port button.
Step 6 The used I/O ranges are listed in numerical order along the left side of the Resources window under Address. Write down an I/O range that is not being used (for example, if range 0100-013F is followed by 0170-0177 in the list, then 0140-0169 is an available range); you will need it for Step 13.
Step 7 Double-click My Computer, Control Panel, and Network.
Step 8 Click the Adapters tab and select the Cisco Aironet wireless LAN adapter.
Step 9 Click Properties.
Step 10 Select Interrupt under Property.
Step 11 Select the number of the unused interrupt from Step 4 in the Value drop-down box.
Step 12 Select IO Base Address under Property.
Step 13 Select a value that is within the unused range you determined in Step 6. For example, if your unused range is 0140-0169, you could select 150.
If your computer's operating system is Windows CE 2.11 or 3.00 and your network is set up to use DHCP to acquire an IP address, the DHCP lease renewal may fail, especially in suspend/resume situations. To obtain an IP address, soft reset your Windows CE device.
Follow the instructions below if your client adapter fails to associate to the Access Point.
If your client adapter is a 40-bit card and LEAP is enabled, the adapter can associate to but not authenticate to Access Points using 128-bit encryption. To authenticate to an Access Point using 128-bit encryption, you have two options:
After you have installed the appropriate driver and client utilities, contact your IS department if you have a problem connecting to the network. Proxy server, network protocols, and further authentication information might be needed to connect to the network.
This section provides instructions for removing a client adapter driver from your computer. Two examples of when you may need to remove a driver are listed below:
Table 4-2 enables you to quickly locate the instructions for removing a driver for your specific operating system.
| Operating System | 6.10 Driver | Driver Other Than 6.10 |
|---|---|---|
Windows 95 | ||
Windows 98 | ||
Windows NT | ||
Windows 2000 | ||
Windows Millennium (Me) | Not applicable | |
Windows CE 2.11 | Not applicable | |
Windows CE 3.0 | Not applicable | |
Linux | Not applicable | |
MacOS 9.x | Not applicable |
To uninstall the 6.10 driver, follow the instructions that apply to your computer's operating system.
Step 2 Right-click the WepStat icon in the system tray on your desktop. This icon looks like two connected computers.
Step 3 Click Terminate.
Step 4 Insert the Cisco Aironet Series Wireless LAN Adapters CD into your computer's CD-ROM drive.
Step 5 Open Windows Explorer and find the \Utilities\RmWep directory on your computer's CD-ROM drive.
Step 6 Double-click the RmWep.exe file.
Step 7 Minimize Windows Explorer.
Step 8 Double-click My Computer, Control Panel, and Network.
Step 9 In the Network window, select the Cisco Systems wireless LAN adapter.
Step 10 Click Remove and OK.
Step 11 When prompted to restart your computer, click No.
Step 12 Maximize Windows Explorer.
Step 13 Click View, Options or Folder Options, and View. Under Hidden files, make sure Show all files is selected, make sure the Hide file extensions for known file types checkbox is deselected, and click OK.
Step 14 Find your computer's operating system in the following table, go to the path listed, and delete the file indicated.
| Operating System | Location of File | File to be Deleted |
|---|---|---|
Windows 95 | C:\Windows\Inf | pc4800.inf |
Windows 98 | C:\Windows\Inf or C:\Windows\Inf\Other | pc4800.inf or |
Step 15 Remove the CD from your computer's CD-ROM drive.
Step 16 Shut down your computer.
Step 17 Remove the client adapter.
Step 18 Go to the "Inserting the Client Adapter into a Computing Device" section for instructions on inserting your new client adapter and installing the latest driver.
Step 2 Right-click the WepStat icon in the system tray on your desktop. This icon looks like two connected computers.
Step 3 Click Terminate.
Step 4 Insert the Cisco Aironet Series Wireless LAN Adapters CD into your computer's CD-ROM drive.
Step 5 Open Windows Explorer and find the \Utilities\RmWep directory on your computer's CD-ROM drive.
Step 6 Double-click the RmWep.exe file.
Step 7 Close Windows Explorer.
Step 8 Double-click My Computer, Control Panel, and Network.
Step 9 In the Network window, click the Adapters tab.
Step 10 Select the Cisco Systems wireless LAN adapter.
Step 11 Click Remove.
Step 12 When asked if you wish to continue, click Yes and Close.
Step 13 When prompted to restart your computer, click No.
Step 14 Remove the CD from your computer's CD-ROM drive.
Step 15 Shut down your computer.
Step 16 Remove the client adapter.
Step 17 Go to the "Inserting the Client Adapter into a Computing Device" section for instructions on inserting your new client adapter and installing the latest driver.
Step 2 Right-click the WepStat icon in the system tray on your desktop. This icon looks like two connected computers.
Step 3 Click Terminate.
Step 4 Insert the Cisco Aironet Series Wireless LAN Adapters CD into your computer's CD-ROM drive.
Step 5 Open Windows Explorer.
Step 6 Click Tools, Folder Options, and View.
Step 7 Under Hidden files and folders, make sure Show hidden files and folders is selected, make sure the Hide file extensions for known file types checkbox is deselected, and click OK.
Step 8 Find the \Utilities\RmWep directory on your computer's CD-ROM drive.
Step 9 Double-click the RmWep.exe file.
Step 10 Go to C:\Windows\Inf and double-click the oemx.inf and oemx.pnf files, where x equals a numeral, to open them.
Step 11 Delete the oemx.inf and oemx.pnf files that are labeled Aironet.
Step 12 Remove the CD from your computer's CD-ROM drive.
Step 13 If you are prompted to restart your computer, click Yes.
Step 14 When the computer restarts, double-click My Computer, Control Panel, and Add/Remove Hardware.
Step 15 In the Add/Remove Hardware Wizard window, click Next.
Step 16 Click Uninstall/Unplug a device. Click Next.
Step 17 Click Uninstall a device. Click Next.
Step 18 From the Devices list, select the Cisco Systems wireless LAN adapter. Click Next.
Step 19 Click Yes, I want to uninstall this device. Click Next.
Step 20 Click Finish.
Step 21 Shut down your computer.
Step 22 Remove the client adapter.
Step 23 Go to the "Inserting the Client Adapter into a Computing Device" section for instructions on inserting your new client adapter and installing the latest driver.
To uninstall a driver other than the 6.10 driver, follow the instructions that apply to your computer's operating system.
Step 2 In the Network window, select the Cisco Systems wireless LAN adapter.
Step 3 Click Remove and OK.
Step 4 When prompted to restart your computer, click No.
Step 5 Open Windows Explorer.
Step 6 If your computer's operating system is Windows 95 or 98, click View, Options or Folder Options, and View. Under Hidden files, make sure Show all files is selected and click OK.
Step 7 Find your computer's operating system in the following table, go to the path listed, and delete the file indicated.
| Operating System | Location of File | File to be Deleted |
|---|---|---|
Windows 98 | C:\Windows\Inf or C:\Windows\Inf\Other | pc4800.inf or aironetnetx500.inf |
Windows Me | C:\Windows\Inf\Other | aironetnetx500.inf |
Step 8 Find your computer's operating system in the following table and delete the pcx500.sys file from the path indicated.
| Operating System | Location of pcx500.sys File |
|---|---|
Windows 95 | C:\Windows\System\pcx500.sys |
Windows 98 | C:\Windows\System\pcx500.sys |
Windows Me | C:\Windows\System32\Drivers\pcx500.sys |
Step 2 In the Network window, click the Adapters tab.
Step 3 Select the Cisco Systems wireless LAN adapter.
Step 4 Click Remove.
Step 5 When asked if you wish to continue, click Yes and Close.
Step 6 When prompted to restart your computer, click Yes.
Step 2 Double-click My Computer, Control Panel, and Add/Remove Hardware.
Step 3 In the Add/Remove Hardware Wizard window, click Next.
Step 4 Click Uninstall/Unplug a device. Click Next.
Step 5 Click Uninstall a device. Click Next.
Step 6 From the Devices list, select the Cisco Systems wireless LAN adapter. Click Next.
Step 7 Click Yes, I want to uninstall this device. Click Next.
Step 8 Click Finish.
Step 9 Open Windows Explorer.
Step 10 Click Tools, Folder Options, and View.
Step 11 Under Hidden files and folders, make sure Show hidden files and folders is selected. Click OK.
Step 12 Go to C:\Windows\Inf and double-click the oemx.inf and oemx.pnf files, where x equals a numeral, to open them.
Step 13 Delete the oemx.inf and oemx.pnf files that are labeled Cisco.
Step 14 Go to C:\Windows\System32\Drivers and delete the pcx500.sys file.
Step 15 Shut down your computer.
Step 16 Remove the client adapter.
Step 17 Turn your computer back on.
Step 2 Select Start > Programs > Cisco > Cisco Aironet Uninstall. The Cisco Aironet Uninstall screen appears.
Step 3 Select the Uninstall Cisco Aironet Wireless LAN Adapter checkbox.
Step 4 Click OK. The utility informs you that the adapter has been uninstalled.
The registry entries (but no files) are removed, and the system returns to the point at which the files have just been copied to the Windows CE device.
Step 2 Select Start > Settings > Control Panel > Remove Programs (on a hand-held device) or Start > Settings > System tab > Remove Programs (on a pocket PC device).
Step 3 Select the Cisco Systems wireless LAN adapter.
Step 4 Click the Remove button.
Step 5 When asked to verify your decision to remove the adapter, click Yes.
Step 6 Click OK. The driver, client utilities, registry entries, and Cisco directory are removed.
Step 2 Go to the Linux directory on the CD.
Step 3 Type sh ./cwuninstall and press Enter. If the uninstall is successful, the driver and the client utilities are removed. If the uninstall process fails, an error message appears.
Step 2 Double-click the Installer icon.
Step 3 When the Cisco Wireless LAN Adapter Software screen appears, click Continue. The Install window appears.
Step 4 In the top left corner of the Install window, click on the Easy Install pull-down menu and select Custom Remove.
Step 5 Select the Application, driver and help files for Power Macintosh checkbox.
Step 6 Click the Remove button.
Step 7 When a window appears indicating that the removal cannot occur with other applications running, click the Continue button.
Step 8 After you receive a message indicating that the removal was successful, click the Restart button.
Step 9 Remove the client adapter from the desktop by clicking on the Cisco Wireless LAN Adapter icon and dragging it to the trash can or by clicking on the Cisco Wireless LAN Adapter icon and selecting the Eject command in the Special menu.
Step 10 Remove the client adapter from your PowerBook's PC card slot.
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Note If the uninstall process is not successful, refer to the Read Me file on the Cisco Aironet Series Wireless LAN Adapters CD for information on manually removing the necessary files. |
You can obtain the latest drivers at http://www.cisco.com/public/sw-center/
sw-wireless.shtml. Under "Wireless Software Products - Cisco Aironet Drivers and Utilities," select your computer's operating system and copy the appropriate driver to your hard drive or to a floppy disk.
Use Table 4-3 to quickly locate the instructions to upgrade the driver for your specific operating system.
| Operating System | Page Number |
|---|---|
Windows 95 | |
Windows 98 | |
Windows NT | |
Windows 2000 | |
Windows Millennium Edition (Me) | |
Windows CE | |
Linux | |
MacOS 9.x |
Step 2 Double-click My Computer, Control Panel, System, the Device Manager tab, and Network Adapters.
Step 3 Select the Cisco Systems wireless LAN adapter.
Step 4 Click Properties.
Step 5 Select the Driver tab.
Step 6 Click the Change Driver or Update Driver button.
Step 7 The Update Device Driver Wizard window appears. Click Next.
Step 8 Select Search for a better driver than the one your device is using now (Recommended) and click Next.
Step 9 Select the location of the new driver (floppy disk drive or specify a location), deselect the other options, enter the full path to the new driver (if you selected to specify a location), and click Next.
Step 10 A message appears indicating that the system is ready to install the new driver. Click Next and Finish.
The driver upgrade is complete, and the old driver is overwritten by the new one.
Step 2 Double-click My Computer, Control Panel, Network, and Adapters.
Step 3 Select the Cisco Systems wireless LAN adapter.
Step 4 Click the Update button.
Step 5 In the Windows NT Setup window, enter the full path to the new driver (for example, you would enter A:\ if you copied the file to the root of a floppy disk) and click Continue.
Step 6 Follow the instructions on the screen to complete the upgrade process.
Step 2 Double-click My Computer, Control Panel, System, the Hardware tab, Device Manager, and Network Adapters.
Step 3 Select the Cisco Systems wireless LAN adapter.
Step 4 Select the Driver tab.
Step 5 Click the Update Driver button.
Step 6 The Update Device Driver Wizard window appears. Click Next.
Step 7 Select Search for a suitable driver for my device (Recommended) and click Next.
Step 8 Select the location of the new driver (floppy disk drive or specify a location), deselect the other options, and click Next.
Step 9 Enter the full path to the new driver (if you selected to specify a location) and click OK.
Step 10 A message appears indicating that the system is ready to install the new driver. Click Next and Finish.
The driver upgrade is complete, and the old driver is overwritten by the new one.
Step 2 Double-click My Computer, Control Panel, System, the Device Manager tab, and Network Adapters.
Step 3 Select the Cisco Systems wireless LAN adapter.
Step 4 Click Properties.
Step 5 Select the Driver tab.
Step 6 Click the Update Driver button. The Update Device Driver Wizard window appears.
Step 7 Select Specify the location of the driver (Advanced) and click Next.
Step 8 Select Search for a better driver than the one your device is using now (Recommended) and click Next.
Step 9 Select the Specify a location checkbox, deselect the other options, enter the full path to the new driver, and click Next.
Step 10 A message appears indicating that the system is ready to install the new driver. Click Next and Finish.
The driver upgrade is complete, and the old driver is overwritten by the new one.
The instructions for upgrading the driver vary depending on the format of the new driver (*.dll versus *.cab files). Follow the instructions for the format of your new driver.
If your new driver has a .dll extension, follow these steps.
Step 2 Copy the new *.dll file to the \Windows directory.
Step 3 Insert the client adapter. The new *.dll file is used.
If your new driver has a .cab extension, follow these steps.
Step 2 Eject the client adapter and remove it from the Windows CE device. This causes the existing driver to unload from memory.
Step 3 Execute the new *.cab file. A message appears indicating that the Cisco Systems wireless LAN adapter is already installed.
Step 4 Click the OK button to reinstall it.
Step 5 Insert the client adapter. The new driver *.dll file is used.
Step 2 Copy the new driver from your hard drive or floppy disk to the pcmcia_cs_3.1.21 directory.
Step 3 Go to the pcmcia_cs_3.1.21 directory and uncompress the new driver file by typing tar zxvf filename.tar.gz (for example, tar zxvf airo_cs.tar.gz) and pressing Enter.
Step 4 Type make -f filename.mk install (for example, make -f airo_cs.mk install) and press Enter.
The driver upgrade is complete, and the old driver is overwritten by the new one.
Step 2 Drag and drop the new driver and enablers into the System folder.
Step 3 When a dialog box appears indicating that the items need to be put into the Extensions folder, click Yes.
Step 4 When a dialog box appears indicating that an older version exists, click Yes to replace it.
Step 5 Restart your PowerBook.
The driver upgrade is complete, and the old driver is overwritten by the new one.
Follow the instructions below whenever you need to remove the client adapter from your computer.
On Macintosh computers running MacOS 9.x, you can remove the PC card while the system is running, provided the card is not being used (that is, the client utility is not running and the card is not selected in the AppleTalk and TCP/IP control panels).
Step 2 Disconnect the client adapter's antenna.
Step 3 Remove the computer cover.
Step 4 Remove the screw from the top of the CPU back panel above the PCI expansion slot that holds your client adapter.
Step 5 Pull up firmly on the client adapter to release it from the slot and carefully tilt the adapter to allow it to clear the opening in the CPU back panel.
Step 6 Reinstall the screw on the CPU back panel and replace the computer cover.
Follow the instructions below if you need to uninstall the client utilities and the Aironet Client Utility setup program on computers running Windows 95, 98, NT, 2000, or Me.
Step 2 Insert the Cisco Aironet Series Wireless LAN Adapters CD into your computer's CD-ROM drive.
Step 3 Select Start > Run and enter the following path (where D is the letter of your CD-ROM drive): D:\Utilities\ACU\setup.exe.
Step 4 When the Welcome screen appears, select Remove and click Next.
Step 5 When asked if you want to completely remove the selected application, click Yes.
Step 6 If you receive a message indicating that a file was detected that may no longer be needed by any application but deleting the file may prevent other applications from running, click Yes.
Step 7 If you receive a message indicating that locked files were detected, click Reboot.
Step 8 In the Maintenance Complete screen, click Finish.
Step 9 If you are prompted to restart your computer, remove the CD from the computer's CD-ROM drive and click Yes.
Posted: Wed Dec 27 13:16:01 PST 2000
Copyright 1989-2000©Cisco Systems Inc.