1、先测试能否联网
http://www.foxtable.com/webhelp/scr/2709.htm
2、可以用ADO,如果不联网,检测一次是至少10秒以上的。
try
Dim conn As ADODB.Connection
conn = New ADODB.Connection
conn.ConnectionString = "Provider=SQLOLEDB.1;Password=hailun.;Persist Security Info=True;User ID=sa;Initial Catalog=test;Data Source=voyo"
conn.Open
msgbox("成功")
conn.close
Catch ex As Exception
msgbox("失败")
End try