Here is a quick set of shell commands to reset and enable AD on Freenas 9.x
service ix-kerberos stop service ix-nsswitch stop service ix-kinit stop service ix-activedirectory stop service ix-pam stop service ix-cache stop sqlite3 /data/freenas-v1.db "update directoryservice_activedirectory set ad_enable=1;" echo $? service ix-kerberos start service ix-nsswitch start service ix-kinit start service ix-kinit status echo $? klist python /usr/local/www/freenasUI/middleware/notifier.py start cifs service ix-activedirectory start service ix-activedirectory status echo $? python /usr/local/www/freenasUI/middleware/notifier.py restart cifs service ix-pam start service ix-cache start &