Cisco Cisco 4402 Wireless LAN Controller

These release notes describe features, enhancements, and caveats in Release 4.1.190.5 and IOS version 
AP 12.4(3g)JMA1.

Release 4.1.190.5 is supported on the following Cisco Wireless LAN controller platforms: 2100 series, 
4400 series and Wireless Service Module (WiSM) for the Catalyst 6500; and is compatible with the 
Cisco Wireless Control System (WCS), Release 4.1 and greater.

Release 4.1.190.5 is compatible with Release 4.1.91.0 of the Cisco Wireless Control System (WCS).

Release 4.1.190.5 supports the following outdoor mesh access points: 

Cisco Aironet 1500 Series (AP1505, AP1510, AP1520)

AP1520 is only supported in the United States in Release 4.1.190.5.

If your network is operating with 1520s or you plan to install 1520s in your network, you must set the 
boot variable on the 1520 before upgrading from release 4.1.190.5 to 4.1.191.24M (or greater release). 
This ensures the 1520 joins correctly (CSCsl70218). Refer to 

 for specific configuration details.

Please see the 

 for important software upgrade and compatibility 

details prior to upgrading to this release.