錯誤訊息 SQL SERVER ERROR !!

連線失敗:
SQLState: '01000'
SQL Server 錯誤:53
[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnctionOpen (Connect()).

連線失敗:
SQLState: '08001'
SQL Server 錯誤: 17
[Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server不存在或拒絕存取