DataSource Controls :: Login Failed For User '(null)'?

Jan 28, 2010

I have 3 virtual computers (Windows 2003); domain server, database server(name=SQL2000), application server(name=2003APPSERVER).SQL2000 is hosting Sql Server 2000, in mixed authentication mode 2003APPSERVER is hosting IIS 6 and asp.net 2.0 Both servers are in the same domain - IAW The application pool (for the asp.net application) in IIS is operating under the 'Network Service' identity.I have created a new login to the database - 'IAW2003APPSERVER$' (see -

http://msdn.microsoft.com/en-us/library/ms998320.aspx#paght000015_sqlserver).I have assigned this login as a user in the 'demo' database with the db_owner role.I can connect from my asp.net application using an sql login and credentials (different account [obviously]).But when I use this connection string I get "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection".

connectionString="Initial Catalog=demo;Data Source=SQL2000;Integrated Security=SSPI;"

Having done some reading including here
http://support.microsoft.com/kb/889615 and here http://forums.asp.net/t/1140981.aspx. I cannot see what I am doing wrong.SQL server authentication is set to mixed I am connecting (or trying to) to a windows user not an SQL server login The user has sufficient privileges in the database.

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