Integrated Security and SQL Server does not exist or access denied.

I'm using integrated security and trying to access the SQ database in dot net. my OS is XP and i've SQL Server 2000 Developer Edition installed. If write following connection string, it works

"Persist Security Info=False;Integrated Security=SSPI;database=DBName;data source=(local);"

But if i use the same using name or IP Address of the server it gives an error stating

"SQL Server does not exist or access denied."

Same happens if access it from some other machine. because in that case also either i'm using ip address of my machine or the name of the machine as server.

It works well through query analyzer.

What could be the reason. pls. help

Thanks and regards,
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Try the following connection string:

Data Source=MY_SERVER_OR_SERVER_IP,1433;Network Library=DBMSSOCN;Initial Catalog=MY_DB;User ID=sa;Password=password;">

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HTH, Nauman.

exactly what ip are you using, it is the local IP of the webserver right? (Since you say (local) works)
ok I will throw my 2 pence in ring

SSPI doesnt that mean you use your Windows login username (and password) to log into SQL server??

When it worked in Query analyser what username and password did you use to run the connection on?

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jayakulAuthor Commented:
For query analyzer i'm using windows authentication and it works

And i need to use windows users to log on to SQL Database
It will work from the Windows APP because all the windows application uses the credentials of current logged in user.  In case of ASP.NET, the worker process aspnet_wp.exe runs under the privilege of ASPNET user account that is not allowed to access the system processes.  You will need to provide the user name and password to access the SQL server from ASP.NET application under the default configuration.

HTH, Nauman.

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just setup a new user and password in Database...... then pass this in sonnection string

cheers George
jayakulAuthor Commented:
nauman_ahmed is right. I've used

<identity impersonate="true" />

in Web.config file. It's working now.

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