我用:
ADOConnection1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security
 Info=False;User ID=sa;Initial Catalog=student;Data Source=计算机名';
连接正确;用:ADOConnection1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security
 Info=False;User ID=sa;Initial Catalog=student;Data Source=205.02.05.14';
却连不上,提示超时错误。205.02.05.14为局域网中某台计算机名的固定IP,请高手指教!