topic We are running Alfresco Alfresco Enterprise v4.2.6 ans our authentication is Kerberos sso, the autenthication is failing for a few user and what we get on the log files is below, Could you help me with this...Thanks in Alfresco Forum https://connect.hyland.com/t5/alfresco-forum/we-are-running-alfresco-alfresco-enterprise-v4-2-6-ans-our/m-p/37224#M15659 <HTML><HEAD></HEAD><BODY><P>2017-09-18 10:04:44,276&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-19] New Kerberos auth request from 142.139.121.130 (142.139.121.130:57352)<BR />&nbsp;2017-09-18 10:04:44,276&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-19] Issuing login challenge to browser.<BR />&nbsp;Search Subject for Kerberos V5 ACCEPT cred (<A href="mailto:HTTP/alfresco.gnb.ca@GNB.CA" rel="nofollow noopener noreferrer">HTTP/alfresco.gnb.ca@GNB.CA</A>, sun.security.jgss.krb5.Krb5AcceptCredential)<BR />2017-09-18 10:04:44,307&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-9] New Kerberos auth request from 142.139.121.130 (142.139.121.130:57354)<BR />&nbsp;2017-09-18 10:04:44,307&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-9] Issuing login challenge to browser.<BR />&nbsp;Search Subject for Kerberos V5 ACCEPT cred (<A href="mailto:HTTP/alfresco.gnb.ca@GNB.CA" rel="nofollow noopener noreferrer">HTTP/alfresco.gnb.ca@GNB.CA</A>, sun.security.jgss.krb5.Krb5AcceptCredential)<BR />2017-09-18 10:05:25,990&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-11] Kerberos logon error<BR />&nbsp;org.springframework.dao.DuplicateKeyException: <BR />### Error updating database.&nbsp; Cause: java.sql.SQLException: Cannot insert duplicate key row in object 'dbo.alf_auth_status' with unique index 'idx_alf_auth_usr_stat'. The duplicate key value is (ChrisBr, 1).<BR />### The error may involve alfresco.authorization.parameter_AuthorizationEntity<BR />### The error occurred while setting parameters<BR />### Cause: java.sql.SQLException: Cannot insert duplicate key row in object 'dbo.alf_auth_status' with unique index 'idx_alf_auth_usr_stat'. The duplicate key value is (ChrisBr, 1).<BR />; SQL []; Cannot insert duplicate key row in object 'dbo.alf_auth_status' with unique index 'idx_alf_auth_usr_stat'. The duplicate key value is (ChrisBr, 1).; nested exception is java.sql.SQLException: Cannot insert duplicate key row in object 'dbo.alf_auth_status' with unique index 'idx_alf_auth_usr_stat'. The duplicate key value is (ChrisBr, 1).<BR />&nbsp;at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:241)</P></BODY></HTML> Mon, 18 Sep 2017 14:40:48 GMT oscar_2016 2017-09-18T14:40:48Z We are running Alfresco Alfresco Enterprise v4.2.6 ans our authentication is Kerberos sso, the autenthication is failing for a few user and what we get on the log files is below, Could you help me with this...Thanks https://connect.hyland.com/t5/alfresco-forum/we-are-running-alfresco-alfresco-enterprise-v4-2-6-ans-our/m-p/37224#M15659 2017-09-18 10:04:44,276&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-19] New Kerberos auth request from 142.139.121.130 (142.139.121.130:57352)&nbsp;2017-09-18 10:04:44,276&nbsp; DEBUG [app.servlet.KerberosAuthenticationFilter] [http-apr-8888-exec-19] Issuing login challenge to browse Mon, 18 Sep 2017 14:40:48 GMT https://connect.hyland.com/t5/alfresco-forum/we-are-running-alfresco-alfresco-enterprise-v4-2-6-ans-our/m-p/37224#M15659 oscar_2016 2017-09-18T14:40:48Z Re: We are running Alfresco Alfresco Enterprise v4.2.6 ans our authentication is Kerberos sso, the autenthication is failing for a few user and what we get on the log files is below, Could you help me with this...Thanks https://connect.hyland.com/t5/alfresco-forum/we-are-running-alfresco-alfresco-enterprise-v4-2-6-ans-our/m-p/37225#M15660 <HTML><HEAD></HEAD><BODY><P>Hi Oscar,</P><P></P><P>I have the same issue error in my logs, but&nbsp;without Kerberos and when a user that has been imported from the LDAP want's to login.</P><P>Did you solve your issue?</P></BODY></HTML> Thu, 21 Jun 2018 14:44:01 GMT https://connect.hyland.com/t5/alfresco-forum/we-are-running-alfresco-alfresco-enterprise-v4-2-6-ans-our/m-p/37225#M15660 gluck113 2018-06-21T14:44:01Z