Caveats

CSCsc25020—PEAP-GTC/AES authentication passes with any certificate chosen

PEAP-GTC/AES authentications passes when “any” is chosen under the trusted root certificate authorities. PEAP-GTC/AES authentications also passes with any vendor certificate chosen under the trusted root certificate authorities.

CSCsc46853—ADU has to be installed twice

After the first installation and reboot, all areas are grayed out after clicking on the ADU icon in Profile Management. The user cannot create or modify the profile. After reinstallation and reboot, the user can configure the SSID and associate to an access point.

CSCsc51460—CB21AG does not associate with an CCKM+AES AP

A CB21AG client configured for WPA, WPA2, CCKM, or EAP is unable to associate on an SSID that is configured for AES+CCKM.

CSCsc62060—ADU bundled with Site Survey Utility does not reflect changes to RF correctly

The Site Survey Utility bundled with the CB21AG card is slow to recognize changes to the RF environment.

CSCsc78069—Link status showing that the user is authenticating even though the user is already authenticated

The link status on the ADU is showing "authenticating...." even though the client is already authenticated and is able to pass traffic.

CSCsc84990—ADU versions 2.1 and 2.5 fail while importing PAC files

While importing PAC files, the error message “Unable to save imported PAC data. Access denied.” may appear. This problem affects versions 2.1 and 2.5 of ADU.

CSCsd08479—CB21AG/PI21AG client sometimes does MediaDisconnect if it roams

A CB21AG/PI21AG client, when roaming twice in rapid succession, might undergo a link-layer media disconnect event, which will cause upper layer applications to lose connectivity for 30-40 seconds.

CSCsd18192—Client does not display password window on ACS redundancy The ADU client does display the password window under these circumstances:

upon entering an invalid user name or password.

upon changing the user profile from a valid one to an invalid one.

CSCsd39987—No valid PAC with local RADIUS after few days with EAP-FAST

CB21AG clients authenticate using EAP-FAST and receive a PAC through auto-provisioning from a local RADIUS server (access point), but between one hour and a few days later, clients do not have a valid PAC when booted. 350 Clients do not see this issue.

CSCsd44604—Unable to import the EAP-FAST PAC file of ACS 4.0

The EAP-FAST PAC file that is exported by the CSUtil utility on ACS 4.0 cannot be imported to ADU manually.

Getting Bug Information on Cisco.com

If you are a Cisco registered user, you can use the Cisco TAC Software Bug Toolkit, which consists of three tools (Bug Navigator, Bug Watcher, and Search by Bug ID Number) that help you to identify existing bugs (or caveats) in Cisco software products.

Release Notes for Cisco Aironet 802.11a/b/g Client Adapters (CB21AG and PI21AG) Install Wizard 3.0

 

OL-8338-01

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Cisco Systems CB21AG and PI21AG manual Getting Bug Information on Cisco.com

CB21AG and PI21AG specifications

Cisco Systems is renowned for its innovative networking solutions, and the CB21AG and PI21AG are significant additions to its portfolio, designed to enhance connectivity in diverse environments.

The Cisco CB21AG is a compact and versatile 802.11a/b/g/n wireless access point tailored for mission-critical applications. One of its standout features is its dual-band capability, operating simultaneously on both the 2.4 GHz and 5 GHz bands. This flexibility facilitates enhanced performance, allowing users to optimize their wireless networks to better meet the specific demands of various devices.

Incorporating advanced technologies such as Cisco CleanAir, the CB21AG intelligently identifies and mitigates sources of interference, ensuring a more reliable wireless experience. This feature not only enhances the quality of area coverage but also provides better performance metrics for users. Furthermore, the CB21AG supports Power over Ethernet (PoE), allowing easier installation and placement by eliminating the need for additional power sources.

On the other hand, the Cisco PI21AG is an equally robust offering, designed for wireless deployments in diverse industries, including retail, healthcare, and education. The PI21AG extends the benefits of dual-band connectivity to provide seamless roaming capabilities, crucial for environments where users frequently move between access points.

The PI21AG is equipped with advanced security features that safeguard the network against unauthorized access and breaches. This includes WPA3 security protocols, which enhance encryption and improve overall security. Additionally, it supports advanced network management capabilities, enabling IT departments to monitor performance metrics and make real-time adjustments to optimize user experience.

Both the CB21AG and PI21AG are designed with scalability in mind, ensuring they can grow with an organization’s needs. Their lightweight designs facilitate easy mounting in various locations, ensuring that users can obtain the best possible connectivity regardless of their environment.

In conclusion, the Cisco CB21AG and PI21AG represent state-of-the-art wireless access solutions, with key features that address the needs of modern networking demands. Their robust design, advanced technologies, and strong security measures make them excellent choices for organizations looking to enhance their wireless capabilities, ensuring reliable and efficient connectivity.