白光 连城三纪彦:为什么提示登录成功但不能保存cookie？

为什么我编的网页在本机上能正常登录并保存cookie，上传到网上空间里就不能保存cookie？
下面是代码：
Const CookieName="LanCookie" '定义 Cookie

登录成功的代码：
Response.Cookies(CookieName)("LanName")=RsLogin("UserName")
Response.Cookies(CookieName)("LanPassword")=RsLogin("Password")
Response.Cookies(CookieName)("LanPurview")=RsLogin("Purview")

conn.asp文件里的代码：
Dim LanName,LanPassword,LanPurview '检查Cookie
LanName=trim(Request.Cookies(CookieName)("LanName"))
LanPassword=trim(Request.Cookies(CookieName)("LanPassword"))
LanPurview=trim(Request.Cookies(CookieName)("LanPurview"))
IF LanName<>Empty Then
Dim CheckCookie
Set CheckCookie=Server.CreateObject("ADODB.RecordSet")
SQL="SELECT UserName,Password,Purview FROM [User] WHERE UserName='"&LanName&"' AND Password='"&LanPassword&"' AND Purview='"&LanPurview&"'"
CheckCookie.Open SQL,Conn,1,1
SQLQueryNums=SQLQueryNums+1
If CheckCookie.EOF AND CheckCookie.BOF Then
Response.Cookies(CookieName)("LanName")=""
LanName=Empty
Response.Cookies(CookieName)("LanPassword")=""
LanPassword=Empty
Response.Cookies(CookieName)("LanPurview")=""
LanPurview=Empty
End If
CheckCookie.Close
Set CheckCookie=Nothing
Else
Response.Cookies(CookieName)("LanName")=""
LanName=Empty
Response.Cookies(CookieName)("LanPassword")=""
LanPassword=Empty
Response.Cookies(CookieName)("LanPurview")=""
LanPurview=Empty
End IF

我把Internet选项里的 隐私设置调到最底了也不行。

谢谢了···