Cisco Cisco Aironet 350 Wireless LAN Client Adapter

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Release Notes for Cisco Aironet 802.11a/b/g Client Adapters (CB21AG and PI21AG) Install Wizard 4.5
OL-19057-02
  Important Notes
The case-sensitive service set identifier (SSID) for your RF network.
If your network setup does not include a DHCP server, you need the IP address, subnet mask, 
and default gateway address of your computer.
The wired equivalent privacy (WEP) keys of the access points with which your client adapter 
will communicate, if your wireless network uses static WEP for security
The username and password for your network account
Protected access credentials (PAC) file if your wireless network uses EAP-FAST authentication 
with manual PAC provisioning
If you want to use the Network Managed Test feature in the Diagnostics tab of the ADU, you need 
to run software release 4.2 (or later) on the Cisco Wireless LAN Controller (controller).
If you want the client adapter to use Management Frame Protection (MFP), you need to run software 
release 4.1.181 or later on the controller.
Important Notes
Client MFP Incorrectly Enabled for WPA Sessions
If a client that supports MFP attempts to associate to a WLAN that is configured for both WPA and 
WPA2, authentication fails if WPA is negotiated for the session. This behavior is a controller issue that 
is tracked in CSCsm39923.
Note
Defect CSCsm39923 is resolved in controller software releases 4.2.112 and later. If your controller runs 
software release 4.2.112 or later, you do not need to follow these steps.
To address this issue from the client side, two registry entries have been added to software build 4.4.0.69. 
Both registry entries have settings that can be configured through the network control panel.
The first registry entry is called ccx5FeatureEnable. To configure this entry, perform the following steps:
Step 1
Right click Properties on the device icon in Network Connection dialog box of the control panel. 
Step 2
Click Configure, and select the Advanced tab.
Step 3
Click MFP in the Property column.
Step 4
Choose the policy setting from the drop-down list in the Value column.
Disable—Management Frame Protection is disabled. With MFP disabled, the client does not 
advertise MFP support. The client cannot connect to networks that require the use of MFP.
Enable—Management Frame Protection is enabled. With MFP enabled, the client can connect to 
networks where use of MFP is disabled, optional, or required. Use the MFP Policy setting
Choose the MFP policy setting that is suitable to your network.
The second registry entry is called ccxMFPPolicy. To configure this entry, perform the following steps:
Step 1
Right click Properties on the device icon in Network Connection dialog box of the control panel.