What am I missing, or where should I be looking for clues?
On the test bench I have a WiSM v5.1x in a 6509. 6509 is providing DHCP. CISCO-LWAPP-CONTROLLR.xy.xyz is in DNS.
I want to use DNS rather than DHCP opt. 43 because I already have a few hundred IOS APs deployed on various subnets.
Converted LWAP gets an IP and is pingable but it won't join either controller. Management interface of one controller is specified in DNS.
Converted LWAP is deliberately on a different vlan/subnet than controller management interface.
Factory 1131 LWAP has joined on the same AP vlan but it was "primed" by first placing it on the same vlan/subnet as the management interface. I'll try clearing it's config and rebooting to see if it has similar problems.
1231 was converted using the tool, MAC and SHA1 key added to both WiSM controllers.