I just fired up a new 2821 ISR with an NME-AIR-WLC12-K9 in slot 1. Problem is, I can't see the controller. Neither sh hard nor sh run show any indication that the controller is present. What stupid little thing am I missing?
Router is running c2800nm-advsecurityk9-mz.124-16a.bin.
I think it is the IOS;
Routers: Cisco IOS Software Release 12.4(3)T and later (from what I have read and seen the T is very important)
From this doc;
Cisco Wireless LAN Controller Modules
Hope this helps!