Kerberos problem

[Guest]

Hello..

I try to add my Kubuntu to windows AD

I follow this post http://www.ubuntugeek.com/how-to-joi...ng-realmd.html

I try to get a valid kerberos ticket for your AD, but I cant do it..

MY Domain is : TECNODIA
I run this command


afco918@afco918:~$ kinit sandi.r@TECNODIA
Password for sandi.r@TECNODIA:
If I enter the correct password Tecno2015
The system gives
kinit: KDC reply did not match expectations while getting initial credentials
afco918@afco918:~$ kinit sandi.r@TECNODIA


Password for sandi.r@TECNODIA:
If I enter the password : TECNO2015 ( Upercase)
The System gives

kinit: Preauthentication failed while getting initial credentials
afco918@afco918:~$

I already check the Krb5.conf file ant the domain is in UPERCASE TECNODIA

Any Help
Regards