Hi Chris, and to all I have configurated the ntlm_auth as told here http://deployingradius.com/documents/configuration/active_directory.html and got success through all the step guide but when authenticate ntlm_auth and when put DEFAULT Auth-Type = ntlm_auth on the the top of /etc/freeradius /users no user can't authenticate, as you 'have suggested that the problem is ntlm_auth authentication. Can you guide on how fix it . This is a rar file with my user + ntlm_auth + mschap + site-enable/default conf. Thanks Yao Thierry Konou AMR SERVICES 11 Rue du Petit Châtelier CS90346 44303 NANTES CEDEX 3 Tel : 02 28 44 19 80 - Fax : 02 28 44 53 88 Site: http://www.amr-services.fr<http://www.amr-services.fr/> De : freeradius-users-bounces+ykonou=amr-services.com@lists.freeradius.org [mailto:freeradius-users-bounces+ykonou=amr-services.com@lists.freeradius.org] De la part de Schaatsbergen, Chris Envoyé : mardi 12 avril 2011 16:16 À : FreeRadius users mailing list Objet : AW: unable to authenticate freeradius+AD You have not configured ntlm_auth, see http://deployingradius.com/documents/configuration/active_directory.html Von: freeradius-users-bounces+chris.schaatsbergen=aleo-solar.de@lists.freeradius.org [mailto:freeradius-users-bounces+chris.schaatsbergen=aleo-solar.de@lists.freeradius.org] Im Auftrag von Yao Konou Gesendet: Dienstag, 12. April 2011 15:53 An: FreeRadius users mailing list Betreff: RE: unable to authenticate freeradius+AD SOS - is somebody around to HELP ME Yao Thierry Konou AMR SERVICES 11 Rue du Petit Châtelier CS90346 44303 NANTES CEDEX 3 Tel : 02 28 44 19 80 - Fax : 02 28 44 53 88 Site: http://www.amr-services.fr<http://www.amr-services.fr/> De : freeradius-users-bounces+ykonou=amr-services.com@lists.freeradius.org [mailto:freeradius-users-bounces+ykonou=amr-services.com@lists.freeradius.org] De la part de Yao Konou Envoyé : lundi 11 avril 2011 15:56 À : freeradius-users@lists.freeradius.org Objet : unable to authenticate freeradius+AD Hi all, I need your help to fix a problem in an AD configuration with Freeradius My platform : Freeradius + samba + AD ( windows 2003). The PB : unable to authenticate AD users This the debug of the authentication of an AD user on the server Regards. Yao Thierry Konou AMR SERVICES 11 Rue du Petit Châtelier CS90346 44303 NANTES CEDEX 3 Tel : 02 28 44 19 80 - Fax : 02 28 44 53 88 Site: http://www.amr-services.fr<http://www.amr-services.fr/>