Error "Invalid username or password" Signing In to Microsoft SQL Server
Published: 28 Jul 2014 Last Modified Date: 02 Feb 2017
When you sign in to Microsoft SQL Server, the following error might occur:
Invalid username or password.
Microsoft SQL Server
Ensure that your user account has permission to access the Microsoft SQL Server database, or that it has permission to impersonate an account that does have access to the server database.
Windows Active Directory (AD) accounts must have permission to sign in to Microsoft SQL Server or have impersonation permissions to sign in to the Microsoft SQL Server using different account credentials.
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