A network-related or instance-specific error occurred while establishing a connection to SQL Server

#highblix

System.Data.SqlClient.SqlException : A network-related or instance-specific error occurred while establishing a connection to SQL Server

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.

Exception Details: System.Data.SqlClient.SqlException: 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)

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:

[KSSTATUSWORLD]

Thank You Sir... It's very helpful.. :)

[Wolfie-eehz]

Sir I cannot connect with my SQL server.i get the same error you mentioned.but I cannot resolve it. My SQL server name is not started using ./. What do I do sir?

[LuigiZambetti]

How about the firewall? Could be the cause of the problem?