I followed all the following MVC/EF tutorials:
https://www.asp.net/mvc/overview/getting-started/introduction/getting-started
Getting Started with Entity Framework 6 Code First using MVC 5
Getting Started with Entity Framework 6 Database First using MVC 5

Using Windows Authentication.
I applied to some to a few tables in a SQL Server (2008R2) database.  This is on a separate server from workstations and IIS server.

Everything works perfect with the studio debugging browser.

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