Sql Authentication = Fast./ Windows Authentication = V.slow!

Mar 25, 2004


(Using win2k, sqlserver2k, framework 1.1)

I have an fairly data-heavy application that uses Windows authentication (Trusted connection/aspnet account) to connect to Sql Server. The site uses IIS basic authentication.

On the dev server everything works fine but when I move to the live server things get strange and it starts to crawl along. (Pages load OK but then it just crawls as it loads the datagrids etc. Sometimes it brings back incomplete/incorrect data )

BUT When I use Sql Authentication to connect to Sql Server and there is no problem at all!

Ok, there is something obviously wrong with the live server (which is identical setup to dev)but I dont know where to start.

Any ideas??

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May 12, 2006

Hi all,

My work is using a shared application
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folder on the Windows 2003 Server is shared and users can access the
folder through a shared drive.

For the application to access the
database, it uses an ODBC connection to the MSSQL server which
originally used the SA password.

We have recently switched to using
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higher level of security. However the only way in which we have been
able to enable this is to add the windows users to the SQL server.

The problem with this is that the
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set by the application by simply using any application that can use
an ODBC connection, such as Enterprise Manager, and see all the

One way around this would be to set up
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the permissions set by the application, and configuring a view of the
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However to do this would require a high administrative cost to ensure
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Instead, is there a way the SQL server
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This would allow the applcation to
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using other applications.

Alternatively, can the SQL server,
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Any help with this matter would be
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Hallo there,

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My problem is when i open sql server management studio and try to connect to my default instance using windows authentication and database engine, an 18456 error occurs.

I enabled all the protocols and all the ports
I disabled windows firewall and antivirus (eset nod32)
I installed all service packs available
I have also installed Visual Studio 2005 without installing sqlexpress

But nothing happens!

Please i am very desperate, any information will be gratefully accepted.

This is my installation Information

Code Snippet

Microsoft SQL Server Management Studio 9.00.3042.00
Microsoft Analysis Services Client Tools 2005.090.3042.00
Microsoft Data Access Components (MDAC) 6.0.6001.18000 (longhorn_rtm.080118-1840)
Microsoft MSXML 3.0 5.0 6.0
Microsoft Internet Explorer 7.0.6001.18000
Microsoft .NET Framework 2.0.50727.1434
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Hi All,

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My problem is ,

When the SQL Server's Authentication mode is changed to "Windows Only", I change the Connection String attribute to Trusted Connection in which Im not specifying the UserId and Password as shown below.

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Thanks in advance.


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