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Hello,

I'm using an asp.net Login control via visual studio 2008 and it is working fine locally.

I tried to upload my project files to a web server and trying to login through login control I've been created.

I'm facing the following problem:
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Server Error in '/test2' Application.
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A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

SQLExpress database file auto-creation error:


The connection string specifies a local Sql Server Express instance using a database location within the applications App_Data directory. The provider attempted to automatically create the application services database because the provider determined that the database does not exist. The following configuration requirements are necessary to successfully check for existence of the application services database and automatically create the application services database:


If the applications App_Data directory does not already exist, the web server account must have read and write access to the applications directory. This is necessary because the web server account will automatically create the App_Data directory if it does not already exist.
If the applications App_Data directory already exists, the web server account only requires read and write access to the applications App_Data directory. This is necessary because the web server account will attempt to verify that the Sql Server Express database already exists within the applications App_Data directory. Revoking read access on the App_Data directory from the web server account will prevent the provider from correctly determining if the Sql Server Express database already exists. This will cause an error when the provider attempts to create a duplicate of an already existing database. Write access is required because the web server accounts credentials are used when creating the new database.
Sql Server Express must be installed on the machine.
The process identity for the web server account must have a local user profile. See the readme document for details on how to create a local user profile for both machine and domain accounts.

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can anyone help?

Edited by algo_man: n/a

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Last Post by Ramesh S
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The login control uses ASP.NET membership provider to authenticate the user. The membership provider is basically SQL server database and connection is specified in the web.config. Therefore you application was working fine as your application was able to connect with SQL server membership database. But your application may not be able to connect with SQL server database from your web server. Therefore change connection details for membership prvider in the web server configuration file.

Refer: Configuring an ASP.NET Application to Use Membership

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