Cisco Cisco 2106 Wireless LAN Controller

These release notes describe features, enhancements, and caveats in Release 4.1.191.24M.

Release 4.1.191.24M is compatible with Release 4.2 of the Cisco Wireless Control System (WCS) and 
is supported on the following Cisco Wireless LAN controller platforms:

2106, 4400 series and Wireless Service Module (WiSM) for the Catalyst 6500 and 7600.

Release 4.1.191.24M supports full interoperability between the following indoor and outdoor mesh 
access points:

Cisco Aironet 1500 (1505 and 1510) series and 1520 (1522) series outdoor access points

Cisco Aironet 1130AG and 1240 AG series indoor access points

Release 4.1.191.24M also supports the following indoor non-mesh Cisco access points:

1000 series, 1100 series, 1130 series, 1200 series, 1230 series, 1240 series and 1300 series.

1250 series access points are not supported on this release.

If some or all of your indoor access points will be operating in an indoor Enterprise Mesh 
deployment or an upgrade to a mesh deployment is planned, install mesh release 4.1.191.24M on 
your controller.

If your indoor access points will not be operating in an indoor mesh deployment and no future 
upgrade to a mesh deployment is planned, install non-mesh release 4.2 or later on your controller.

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 mesh 
release). This ensures the 1520 joins correctly (CSCsl70218). Refer to the