I have some access-points AIR-AP-1121G-TO-K9 and it would like to use them with a WLAN Controller. Is possible to change IOS for the software LWAPP to use with the WLAN Controller?
I know that that is possible in another models of access-points, but I don't know if the 1121 support that upgrade.
I haven't done it myself but heard that 1120 is supported for conversion with the following caveats. You need to use version 2 of the LWAPP conversion tool. Additionally, you need to download 12.3(11)JX to the AP.
Try that and update if it works for you.