I am deploying a 6509-WISM with 120 x 1130 APs running 126.96.36.199. Both controllers (A and B) are configured as LWAPP Layer 3 mode with he same mobility and RF domain. The APs use DHCP to obtain their IP through option 43. All APs register only to WiSM-B and none go to WiSM-A. I even tried configuring the Primary and Secondary Controller with WISM-A only and the APs are still only registering to WiSM-B only. Any advice would be greatly appreciated.