Request for the permission of type 'System.Data.SqlClient.SqlClientPermission failed

Question

I have an ASP.NET application, using LINQ to connec to a SQL Server 2008 R2 databse.

My connection string:

Data Source=[SqlServerIp];Initial Catalog=[dat         


        

Answer 1

I had faced the same problem, and I resolved this way:

Changing the app pool identity that my application uses in IIS to pre-built account NetworkService.

The default identity is ApplicationPoolIdentity, and looks like it doesn't have enough privileges to access network resources.