After upgrading controller to 5.2.157 (also tried 5.1.151 with same result) I have problems to get a DHCP address to the accesspoints. It works if I reboot the controller, but if I disables the power to an AP and enables it again, making the AP to reboot, it can't get an adress. If I debug DHCP in the controller, I see this:
*Dec 16 09:09:03.149: 00:21:9b:70:a1:06 DHCP dropping packet (no mscb) found - (giaddr 0.0.0.0, pktInfo->srcPort 68, op: 'BOOTREQUEST')
I have tried to find a solution to this, but with no luck. Any Ideas?