AIQUM が AD リモート認証でユーザを認証できません

環境

• Active IQ Unified Manager （ AIQUM ）
• Active Directory （ AD ）リモート認証

問題

Active IQ Unified Manager で認証を試みると、次のエラーが記録されます。

• UM Web UI
  • Failed to authenticate user 'user_name'.
• UM ログにエラーが表示される：
  • ocum-error.log
    • 2020-11-05 13:25:49,536 ERROR [user_name] [default task-412] [service.logging.SimpleRemoteLoggingService|logOnServer] [c.n.d.w.c.s.l.LdapServersPagePresenter] Failed to authenticate user 'user_name'.
  • ocumserver.log
    • 2020-11-05 13:25:49,536 ERROR [user_name] [default task-412] [service.logging.SimpleRemoteLoggingService|logOnServer] [c.n.d.w.c.s.l.LdapServersPagePresenter] Failed to authenticate user 'user_name'. com.google.gwt.core.shared.SerializableThrowable: Failed to authenticate user 'user_name'.