Microsoft Sql Error 18456 State 11
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of Plan Explorer and a performance monitoring and event management platform for the Microsoft Data Platform and VMware. He has been blogging here at sqlblog.com since 2006, focusing on manageability, performance, and new features, and also blogs at blogs.sentryone.com and error 18456 severity 14 state 11 sql 2008 r2 SQLPerformance.com; has been a Microsoft MVP since 1997; tweets as @AaronBertrand; and speaks frequently at major
Error 18456 Severity 14 State 38. Sql Server 2008 R2
conferences, user group meetings, and SQL Saturday events worldwide. Troubleshooting Error 18456 I think we've all dealt with error 18456, whether it be an application
Error 18456 Severity 14 State 8
unable to access SQL Server, credentials changing over time, or a user who can't type a password correctly. The trick to troubleshooting this error number is that the error message returned to the client or application trying to connect is intentionally vague
Error: 18456, Severity: 14, State: 5.
(the error message is similar for most errors, and the state is always 1). In a few cases, some additional information is included, but for the most part several of these conditions appear the same to the end user. In order to figure out what is really going wrong, you need to have alternative access to the SQL Server and inspect the log for the true state in the error message. I helped our support team just today solve a client's 18456 issues - error 18456 severity 14 state 6 once we tracked down the error log and saw that it was state 16, it was easy to determine that their login had been set up with a default database that had been detached long ago. In SQL Server 2012, there is a new feature called "contained databases" - I've blogged about it here and here. With this feature comes a new layer of security that may creep onto your radar if you use this functionality: contained user authentication failures. There are a variety of things that can go wrong here. If you connect with a contained user but forget to specify a database name, SQL Server will attempt to authorize you as a SQL login, and you will fail with state 5 (if there is no SQL login with that name) or state 8 (if there is also a SQL login with the same name and the password doesn't match). There is also a new state 65 which occurs if you have specified the correct username and contained database, but entered an incorrect password. The way that the authentication process works is, if SQL Server doesn't find your user in the contained database you specifies, it tries again at the server level, then gives up (it won't go check all the other contained databases in case you match there - I hope you agree that this is a good thing). If you don't specify a database in your connection string, then it won't succeed unless - by
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27, 201010 Share 0 0 A recent discussion on the #sqlhelp hashtag on https://blogs.msdn.microsoft.com/sqlserverfaq/2010/10/27/troubleshooting-specific-login-failed-error-messages/ Twitter got me researching into this issue. The error message was: 2010-10-19 02:56:59.380 Logon Error: 18456, Severity: 14, State: 11.
2010-10-19 02:56:59.380 Logon Login failed for user