When the password of the LDAP connection object is wrongly set, a garbled messages is displayed in the WP logs:

U00051002 LDAP message 'BindResponse' with result code 'invalidCredentials', 
message: 8009030C: LdapErr: DSID-0C090579, comment: AcceptSecurityContext 
error, data 52e, v3839 

 

Release:
Component: AAUTEN

Workaround:
Set the correct password

Solution:
Update the Automation Engine to v12.1 or v12.2 where the message is properly displayed.