Cristian, It seems that the problem you're having is with a specific client certificate as I see Access-Accept's on the log file you sent me. Make sure that the client certificate is not expired and that the client is using the right password for the CA (Root) certificate. Regards, Emilio -----Original Message----- From: freeradius-users-bounces+emilio.escobar=hp.com@lists.freeradius.org [mailto:freeradius-users-bounces+emilio.escobar=hp.com@lists.freeradius.org] On Behalf Of Cristian Novac Sent: Thursday, March 06, 2008 11:21 AM To: FreeRadius users mailing list Subject: problem with MSCHAPv2 I fail to authenticate my user, and it seems to me that it's a problem with the certificates Could you please check the attached radius log to see if that is the real problem I am interested in the user having the mac:00-1D-E1-00-EA-02 Thank you in advance Cristian NOVAC