HTTA-811 — An OOB-authenticated user cannot be found in LDAP
If external OOB authentication method is used, the list of authenticated users is obtained from an external server. Optionally, information about group membership for each user can be read via LDAP. This messages means that the external source of the user list has send a user name which cannot be looked up in the LDAP database. The failed user is treated as not authenticated.