There is a big problem on the Sw version of controller from 9.6 to 9.7.2.0.15 upgrade on the AP's 2741 and 2942. It causes to destroy complately on the AP's. Destroyed AP's never returns to default IP in case of Hard reset.
One customer ordered addi,tonaly 25 items R300. The controller was working with SW release 9.6 and there was 11 items 2741 and 4 items 2942 on the network. The system has 50 licenses. We upgraded the controller to Release 9.7.2.0.15 to connect the 25 items AP's R300. This causes to complately destroy AP's 2741 and 2942 all on the network.