The AG Group, Inc. Cisco CB21AG Driver Download (Official)

Download the latest version of the Cisco CB21AG driver for your computer's operating system. Visitors have downloaded this file "" 684 times with an aggregate rating of 5 out of 5 stars based on 9 reviews. The total disk space used for this update is 247.6 KB.

9 Ratings (see all reviews)

Supported Models

Cisco CB21AG

3Com 3CRPAG175 Wireless LAN PC Card

Atheros AR5001A Wireless Network Adapter

Atheros AR5001X Cardbus Wireless Network Adapter

Atheros AR5001X Mini PCI Wireless Network Adapter

Atheros AR5001X+ Cardbus Wireless Network Adapter

Atheros AR5001X+ Mini PCI Wireless Network Adapter

Atheros AR5002G Cardbus Wireless Network Adapter


Supported Operating Systems

Not Applicable

File Name

Versions (2005-08-26) via .inf

Additional Notes

Cisco CB21AG


WildPackets Wireless Atheros Driver

Uploaded By

Kesavan (DG Staff Member) on 16-Apr-2007

Ratings & Reviews

See all The AG Group, Inc. Cisco CB21AG ratings and reviews

Device Hardware IDs

Compatible IDs









Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
ar5211.sys 438.9 KB 26 Aug 2005
net5211.inf 52.6 KB 26 Aug 2005

How to Update Cisco CB21AG Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Cisco CB21AG driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter The AG Group, Inc. Cisco CB21AG into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Driver Update Utility for The AG Group, Inc. Cisco CB21AG. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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