AIQUM へのアクセス時にユーザまたはグループ「 name 」が見つかりません

環境

• Active IQ Unified Manager （ AIQUM ） 9.x
• すべてのプラットフォーム（Windows / Linux / VMware）
• 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 ：
  • User or group 'name' not found in the authentication server. Either the user or group does not exist or it could not be found using the current authentication settings.
• UM ログにエラーが表示される：
  • ocum-error.log
    • 2020-11-05 13:50:21,883 ERROR [user_name] [default task-427] [service.logging.SimpleRemoteLoggingService|logOnServer] [c.n.d.w.c.s.l.LdapServersPagePresenter] User or group 'name' not found in the authentication server. Either the user or group does not exist or it could not be found using the current authentication settings.
  • ocumserver.log
    • 2020-11-05 13:50:21,883 ERROR [user_name] [default task-427] [service.logging.SimpleRemoteLoggingService|logOnServer] [c.n.d.w.c.s.l.LdapServersPagePresenter] User or group 'name' not found in the authentication server. Either the user or group does not exist or it could not be found using the current authentication settings. com.google.gwt.core.shared.SerializableThrowable: User or group 'name' not found in the authentication server. Either the user or group does not exist or it could not be found using the current authentication settings.