CASCL0004S Auto-install rejected by user exit

During the auto-install process the user exit rejected the Transaction System client's connection.
Restriction: 本トピックは、Enterprise Server 機能が有効な場合にのみ該当します。
System Action:
The auto-install is rejected.
Resolution:
Try starting the Transaction System client with another netname.
Module:
dfhzai
Destination:
TDQ CAIL and Transaction System client