WLC 4404 Integration with Microsoft AD can work but could you telll me what kind of radius-server are you using for wireless authentication? If the server is Cisco ACS, ACS does check with AD for every authentication (as does the controller); it does not cache the information. You should be able to go into Microsoft to turn on audit trail for successful & failed authentications. If you see AD being hit for every authentication, it would be Microsoft that would be causing the lag.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...