Just to post a confirmation, this was my issue (multiple copies of modules in the /etc/raddb/modules directory), which was self-inflicted since I kept them there.
I had other issues come up with permissions, logon failures due to realm, etc. All were resolved with the FreeRADIUS documentation and radius log. I now am able to authenticate against AD! Thank you both, Alan and Fajar! This has been a great learning experience :) -- View this message in context: http://freeradius.1045715.n5.nabble.com/Getting-NT-STATUS-WRONG-PASSWORD-Wrong-Password-0xc000006a-when-using-ntlm-auth-tp5040204p5059144.html Sent from the FreeRadius - User mailing list archive at Nabble.com. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

