I hope it will be helpful to everyone’s study, and I hope you will support developpaer more. (Microsoft SQL Server, Error: 18456).' The takeaway here: always specify the database name explicitly in the options tab of the connection dialog do not use the. The above is the whole content of this article. Now you can log in to the database with SA Configuring IP properties and entering TCP/IP properties will require address enablement
Open “SQL Server Configuration Manager”, expand “SQL Server Network Configuration”, and open “TCP/IP” in “MSSQL SERVER Protocol”:Ģ.
Enter “Security”, “Login Name”, “sa” in turn, and right-click “sa” to select properties.ġ.
#SQL ERROR 18456 LOGGING IN WINDOWS#
In the pop-up dialog box, set “Server Authentication Mode” in “Security” to “SQL Server and Windows Authentication Mode”:ġ. Log in with “Windows Authentication” mode, enter the server, right-click, select properties:Ģ. Reason: An attempt to login using SQL authentication failed. When SQL Server is set to use Windows Authentication only, and a client attempts to log in using SQL authentication. 09:18:59.97 Logon Login failed for user rgcorpSMSadmin. You may be trying to log in using Windows authentication with a user that the SQL. Server is configured for Windows authentication only. (1) Error 18456 commonly occurs when mixed mode authentication is enabled.
#SQL ERROR 18456 LOGGING IN PASSWORD#
Setting the Server authentication mode to allow SQL Server and Windows Authentication, you will be able to login to MS-SQL with a SQL user and password or a Windows user and password. 23:55:05.02 Logon Error: 18456, Severity: 14, State: 16. Reason: An attempt to login using SQL authentication failed.
Previously installed in SQL 7.0, SQL 2000, SQL 2005, 2008 version, as if there is no such complexity ah, Baidu found a solution, summed up: this error is generally caused by three reasons, login settings errors, SA settings errors and whether the IP mode is open, the following three problems are solved in turn.ġ. If you find Windows Authentication is the only mode configured, this is the likely cause of Error 18456, Login failed for user ‘When I used Windows Authentication, everything was OK, but when I logged in to the database with SA users, the following mistakes occurred:
I installed it on Win7, and the installation process went smoothly. I heard that the function is very powerful. Recently, I want to study the database of SQL SERVER 2012 Enterprise version.