Create and set the session state server for ASP.

First create the server database ASPState:

C:\windows\microsoft.net\framework64\v4.0.30319>aspnet_regsql-ssadd-sstype P-E-S \SQLExpress

Execute Database Scripts script:
Use ASPState
GO
CREATE USER [ADR] for LOGIN [ADR] with DEFAULT_SCHEMA=[DBO]
GO
EXEC sp_addrolemember ' db_datareader ', ' ADR '
EXEC sp_addrolemember ' db_datawriter ', ' ADR '
GO
GRANT SELECT, INSERT, UPDATE, DELETE, EXECUTE to ADR
GO

Where the ADR is a database user. In Web. config, use it to generate a database connection string.