During the development of solutions or the deployment using Visual studio, you might face the following error when using Entity Framework to connect to a SQL Server instance
A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - The handle is invalid.
In order to resolve this issue, follow these steps
1) Clean your VS.Net Solution
2) Rebuild Project.
3) Reset IIS
4) Run the project again.