Not sure what I am doing wrong so I have included the parameters I used which I used the existing login and this article for reference: http://itproguru.com/expert/2014/09/how-to-fix-login-failed-for-user-microsoft-sql-server-error-18456-step-by-step-add-sql-administrator-to-sql-management-studio/ Whatever I do I get the Error: 18456 message.

database user setup tabs

1 Answer 1


Ok found the answer after an hour of trying various options.

Server properties - Security (see image)

Shame there is no warning message somewhere when you create SQL Authentication users that they have no access. enter image description here

  • There is a clear message in the error log: Date xxx Log SQL Server (Current ) Source Logon Message Login failed for user ''. Reason: An attempt to login using SQL authentication failed. Server is configured for Windows authentication only. [CLIENT: <local machine>]
    – Spörri
    Oct 13, 2016 at 23:53

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