integrate hp ilo with active directory 2008

hi

we are all familiar with great feature named ilo on hp servers

we have more than 100 hp servers and ilo is configured for all of them

so using local users will be very bad

i tried to make them integrated with AD using this document

how to integrate HP Integrated Lights-Out 3 (iLO 3) processors with Microsoft®. Windows® Active Directory (AD)

everything seems ok

the prompt for user is changed tp directory or local user

it shows that ad connection is ok

but the  login failure

i tested it on ilo 2 (and i think also ilo 3)

is there any point here ? has anyone done that before ?