LDAP Authentication Fails With: LDAP: No user information found in ldap for xxxxx and LDAP: No DN returned for xxxxxIssue The connection to the LDAP server(s) is working fine, but when a user tries to login using LDAP authentication the following errors are seen in the LDAP Log: No user information found in ldap for xxxxx and LDAP: No DN returned for xxxxxReleaseAny release that uses LDAP for authentication.CauseTo debug the issue set this system property: Name = glide.ldap.debug Type = true|false Value = true Have the user reproduce the issue then check the node logs - will see similar logging for the failed login attempt: 2020-03-27 09:19:25 (219) Default-thread-4 8B7AF9311BFBC09494DEDB9EBD4BCB24 txid=81ba79fd1bbb DEBUG: LDAP API - LDAP : DN :CN=Doe\, John,OU=Workers,DC=thirdparty,DC=ad,DC=sn,DC=com doesnt have a valid RDN This indicates that there has been a LDAP OU created with an invalid RDN which is not recognized by the LDAP server causing the LDAP login to fail.ResolutionCustomer should involve their LDAP administrator and analyze the OUs that exist for the user's LDAP server. Customer should modify or deactivate any OUs that have incorrect RDN settings.