Error : Shared Memory Provider, error: 0 - No process is on the other end of the pipe.

System.Data.SqlClient.SqlException : A connection was successfully established with the server, but then an error occurred during the login process. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.)

The password could be expired. It’s too bad the message is not a little more informative.