Cant Connect to remote server, my app works in local only??

Hello,
i've developed a website using VB.NET, and SQL SERVER 2K, in my dev environment works properly (SQL Server and WEB SERVER are in the same machine).
When i put everything in the target machine, where the webserver is but not the sql, i get the following error:
Sql SErver does not exist or access denied

I've tried so many ways to do this, ODBC, ADO.NET, OLEDB....and everything ends in the same error.
Also if i try to connect with ODBC (from odbc manager) it seems to work (test connection succesfull), but in asp.net nothing works.
I've tried to access the server with:
INSTANCE_NAME
\SERVER_NAME\INSTANCE_NAME
IP,PORT

I think (they are checking this), that the auth mode is set to MIXED MODE.

Any idea to save my life?? ;)

Thanks pplYour reference to the server in your ADO connection string should be:

ipaddressofserver\instancename (i.e., 206.152.125.6\instance1 )

If you are using SQL Authenticiation, which you should, then you need to reference the {uid} and {password} properties.
I would be willing to bet that your SQL Installation is set the Mixed Mode.

HTH