Membership Another Question

[Gunawan]

Hi All,
Why I always get this message
Could not establish a connection to the database.
If you have not yet created the SQL Server database, exit the Web Site
Administration tool, use the aspnet_regsql command-line utility to create
and configure the database, and then return to this tool to set the
provider.

While testing connection of AspNetSqlProvider though I could create and
manage user in WAT and database already created in App_Data folder.

Regards,
Gun