Connectiong problem Sqlserver 2005 Express

I'm working with an Sqlserver 2005 Express database on my local machine, and using vs.net 2005.I need to enable the sqlserver cache by the way:

aspnet_regsql -E -d Northwind -ed

I encountered the remote connection problem(error:40).The northwind database was restored to the sqlserver 2005 express by the db file downloaded,and I added the ASPNET user.I also enabled the TCP/IP by using SQL Server Configuration Manager.

But all the web application connected to the Northwind database is working through the connection string:

"Data Source=WKS-DEV-04\SQLEXPRESS;Initial Catalog=Northwind;Integrated Security=True"

Any help will be much appreciated, thank you very much for reading my post

Can you telnet to the remote SQL Express service from the client? Using such command from commandline:

telnet xxx.xx.xx.xxx yyyy

Where Xs stand for ip address of the remote server, and Ys stand for TCP port of the service. You can check the TCP port of the SQL service in 'SQL Server Configuration Manager'->SQL Server 2005 Network Configuration

|||Thank you for your reply very much.I have got it done.