The provider did not return a ProviderManifestToken string when attempting to connect to Azure SQL

Question

I am connecting to Windows Azure SQL and I get the error The provider did not return a ProviderManifestToken string . This used to work until some thing I am unaware of got changed. I used the default setup when the web application was created by the VS2013 wizard. I do use entity framework also but I have a different connection string and DBContext for that.

The connection string is DefaultConnection shown below.

"DefaultConnection" connectionString="data source=tcp:lzol9w71f5.database.windows.net,1433;Database=Eye-Analytics;User ID=Eye-Analytics@lzol9w71f5;Password=[not displayed];Trusted_Connection=False;Encrypt=True;Connection Timeout=30;" providerName="System.Data.SqlClient"

Line 48: if (ModelState.IsValid) Line 49: { Line 50: var user = await UserManager.FindAsync(model.UserName, model.Password); Line 51:
if (user != null) Line 52: {

Source File: c:\\Users\\grbrand\\Documents\\Workspaces\\EA-Cloud\\Eye-Analytics-Azure-Cloud-WebRole\\Controllers\\AccountController.cs Line: 50

[ProviderIncompatibleException: The provider did not return a ProviderManifestToken string.]
System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection) +558
System.Data.Entity.Utilities.DbProviderServicesExtensions.GetProviderManifestTokenChecked(DbProviderServices providerServices, DbConnection connection) +94

[ProviderIncompatibleException: An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct.]
System.Data.Entity.Utilities.DbProviderServicesExtensions.GetProviderManifestTokenChecked(DbProviderServices providerServices, DbConnection connection) +358

Answer 1

Check if the IP of the machine from which you are trying to access the SQL Azure DB is white listed. You can do this from the Azure management portal.