How do I fix Microsoft SQL Server failed login error 18456?
23 Answers
- Right click on the server and click Properties.
- Go to the Security page.
- Under Server authentication choose the SQL Server and Windows Authentication mode radio button.
- Click OK.
- Restart SQL Services.
How do I fix ODBC connection failed?
To fix this problem, the ODBC Driver settings need to be adjusted. Follow these steps: Click Start > Settings >Control Panel > Administrative Tools > Data Sources (ODBC). Click the "System DSN" tab in the ODBC Data Source Administrator Window.
What happens when a login does not have access to its default database and is used to open a connection to a SQL Server instance?
If the default database is not available, try to log in with the user account who can modify logins and change the user's default database with the one which is available during the time of connection. For changing the default db: Use sqlcmd utility for SQL Server 2005, 2008 and later versions.
Could not connect to SQL Server using Windows Authentication?
Go to the Properties of the selected server (from the right-click menu). Now go to the Security page and under Server authentication choose the option SQL Server and Window Authentication mode. Now expand Security > Logins and right-click the server name, and select Properties. ... Click OK and restart the SQL server.
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