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Issue
This article applies to Connector errors where there are errors authenticating to kerberos and LDAP, and login events are still found. Login events report DN not found.
Cause
Logon failure: unknown user name or bad password.
These logs represent what the issue looks like. Events are still found, but report DN not found.7/22/2019 3:16:01 PM: Using NTLM for LDAP://10.0.0.31:389/DC=Nephrology,DC=com communication to fetch the DN
7/16/2019 4:33:18 PM: DN not found!
Resolution
Check the detailed properties for the opendns_connector user. Ensure that a "UserPrincipalName" is defined (its the email address of the account). Once populated, we should work again. Have the user check the userprincipalname definition of another account for format and expected definition.