We also have this issue. And it's filed as https://issues.jenkins-ci.org/browse/JENKINS-14057
We're running 1.466.1. These exceptions were in the log when we ran 1.448, too, though there was no manifestation in the UI. Dan From: jenkinsci-users@googlegroups.com [mailto:jenkinsci-users@googlegroups.com] On Behalf Of David Aldrich Sent: Friday, August 17, 2012 9:25 AM To: jenkinsci-users@googlegroups.com Subject: Active Directory authentication error with 1.466.1 LTS Hi I am running Jenkins 1.466.1 LTS with Active Directory authentication. The authentication has been working correctly, but today I noticed the following type of error in: Manage Jenkins > Configure System > Authorization > Project-based Matrix Authorization Strategy: Failed to test the validity of the user name <myname> <http://hudsonmaster.uktm.eu.nec.com:8080/configure> (show details) org.acegisecurity.BadCredentialsException: Failed to retrieve user information for <myname>; nested exception is javax.naming.NamingException: [LDAP: error code 1 - 00000000: LdapErr: DSID-0C090627, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, vece I clicked 'Test' underneath 'Active Directory' and it gave an error. I then downgraded the Active Directory plugin from 1.29 to 1.19. 'Test' now succeeds but the 'Project-based Matrix Authorization Strategy' area still shows the above error against each user. Any ideas how to fix this please? Best regards David