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12:19:34.56 Logon Login failed for user '\ 38 for error 18456 while trying to authenticate on Microsoft SQL Server and address how to fix it. In this article, we’ll take a closer look at State no. SQL Server is configured to allow Windows Authentication only and a client connects using SQL Authentication.ĭatabase requested by user does not exist This state usually means you do not have permission to receive the error detailsĪttempt to use a Windows login name with SQL AuthenticationĪuthorization is correct, but access to the selected database is not allowedĬould not find database requested by user 18456 from MSDN below.Įrror information is not available. Please find below the various Error State no. Majority of the Authentication related errors might arise due to incorrect username or password, disabled SQL Authentication mode, expired password, deleted user account or non-existent database. which will be helpful to identify in more detail about the Login Authentication failure. SQL Server will provide an Error State no. One of the most common issues faced while connecting to a SQL Server instance is "Login failed for user 'username'.#SQL ERROR 18456 SEVERITY 14 STATE 38 HOW TO#