Microsoft Sql Server 2008 Express Error 18456
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Microsoft Sql Server Error 18456 Windows Authentication
posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community login failed for user 'sa'. (microsoft sql server error 18456) Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Unable to login to SQL Server + SQL Server server is configured for windows authentication only Authentication + Error: 18456 up vote 79 down vote favorite 17 I have created login account on my localhost\sql2008 Server (Eg. User123) Mapped to Database (default) Authentication Mode on SQL Server is set to both (Windows and SQL) But login to SQL Server fails with following message (for User123) Note: Have checked multiple time that UserName / Password are typed in correctly Error Details: Login failed for user
18456 Sql Server Authentication 2014
'User123' (Net.SqlClient Data Provider) Server Name : localhost\sql2008 Error Number: 18456 Severity : 14 State : 1 Line Number : 65536 any help on this please. sql-server sql-server-2008 share|improve this question edited Jan 4 '13 at 6:41 asked Mar 19 '10 at 3:38 Sreedhar 9,8022380135 1 Test both the sql and windows authentication access through SqlServer Management Console for the user and see if you can access with the above account. What data provider and connection string are you using? –Joe Pitz Mar 19 '10 at 3:51 1 Am trying to login in SSMS and it throws above error. –Sreedhar Mar 19 '10 at 3:52 1 Are you running vista? –Joe Pitz Mar 19 '10 at 3:57 1 Its WindowsXP with SP3 –Sreedhar Mar 19 '10 at 3:58 1 You can login as admin account? –Joe Pitz Mar 19 '10 at 4:06 | show 2 more comments 4 Answers 4 active oldest votes up vote 29 down vote accepted By default login failed error message is nothing but a client user connection has been refused by the server due to mismatch of login credentials. First task you might check is to see whether that user has
SQL Server 2005 ★★★★★★★★★★★★★★★ SQL Server ConnectivityFebruary 21, 2006411 Share 0 0 In continuing with the theme of understanding error messages I'll discuss the "login failed" messages that are error 18456 severity 14 state 8 but password is correct surfaced by the client and written to the server's error log (if the error 18456 sql server and windows authentication mode auditlevel is set to log failures on login which is the default) in the event of an error during the
Sql Server Error 18456 State 28000
login process. If the server encounters an error that prevents a login from succeeding, the client will display the following error mesage. Msg 18456, Level 14, State 1, Server
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18456and show you how you may be able to resolve it. Contents 18456 Error Overview Before you dive in Potential causes SQL Server Authentication not enabled Invalid login name Invalid password Common reasons State 1 explanations 18456 Error State List 18456 Error overview When connecting to Microsoft SQL Server and trying to use usually SQL Authentication method you may get event IDerror 18456 login failed for useryou provided. See below example. This usually means that your connection request was successfully received by the server name you specified but the server is not able to grant you access for a number of reasons and throws error: 18456. This eventID sometimes provides also state 1 which actually isn’t that useful as due to security reasons any error is converted to state 1 unless you can check logging on the server. Microsoft does not provide very useful message boxes so below are some explanations why you get the error. Want to easily improve your SQL Server Skills? Before you dive in If you are NOT a DBA (Server Administrator) then read this. We had a number of online private chats using our website chat feature and we have identified there are a number of situations where you cannot do anything about it! We are aware some of you might be very new to this so I will provide you with simple list of questions or steps to check if you are in the 'cannot do anything about it' group. Before you start "fixing" it please go through the list below: Are you the person managing the server or the person who installed sql server (e.g. personal pc/laptop)? If no or you don't know, then there is a high chance you don't have permissions to fix it. What does it mean? It means you can only do what you are in control of (typing username, password) or trying steps that don't invo