Microsoft Sql Server Error 18456 Linkid 20476
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(Русский)ישראל (עברית)المملكة العربية السعودية (العربية)ไทย (ไทย)대한민국 (한국어)中华人民共和国 (中文)台灣 (中文)日本 (日本語) error number: 18456 severity: 14 state: 1 line number: 65536 HomeLibraryLearnDownloadsTroubleshootingCommunityForums Ask a question Quick access microsoft sql server error 18456 windows authentication Forums home Browse forums users FAQ Search related threads Remove
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Server > SQL Server Security Question 1 Sign in to vote I can't seem to connect to our local instance of Microsoft SQL Server. I obtained the followinf infrotmation from turning on windows+sql server authentication the error log and I can't find anything in regards to Severity 14 and state 1. If anyone has any information in regards to this it would be much appreciated. Thanks in advance!===================================Cannot connect to 10.1.0.191.===================================Login failed for user 'kbober'. (.Net SqlClient Data Provider)------------------------------For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476------------------------------Server Name: 10.1.0.191Error Number: 18456Severity: 14State: 1------------------------------Program Location: at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionO
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Sql Server Error 18456 Severity 14 State 5
developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question microsoft sql server, error: 233 x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join 18456 sql server authentication 2014 them; it only takes a minute: Sign up SQL Server 2008 database engine login failed for administrator user in windows 7 [closed] up vote 5 down vote favorite 6 I installed SQL Server 2008 Enterprise Edition on Windows 7 Ultimate https://social.msdn.microsoft.com/Forums/sqlserver/en-US/12de6c4f-620b-4658-8f5f-cff2efe582c2/microsoft-sql-server-error-18456-severity-14-state-1?forum=sqlsecurity from sadegh user. This account exists in administrators role. after a few days I removed sadegh user from Windows and now I am using administrator user. But I can't login to SQL Server database engine using Windows authentication method and I receive this error message: TITLE: Connect to Server Cannot connect to SADEGH-PC. ADDITIONAL INFORMATION: Login failed for user 'Sadegh-PC\Administrator'. (Microsoft SQL Server, Error: 18456) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476 please help me! thanks sql sql-server-2008 share|improve this question edited http://stackoverflow.com/questions/2833373/sql-server-2008-database-engine-login-failed-for-administrator-user-in-windows-7 May 14 '10 at 12:41 marc_s 454k938701032 asked May 14 '10 at 10:25 Sadegh 1,58162961 closed as off-topic by Flexo♦ Dec 14 '13 at 10:00 This question appears to be off-topic. The users who voted to close gave this specific reason:"Questions about general computing hardware and software are off-topic for Stack Overflow unless they directly involve tools used primarily for programming. You may be able to get help on Super User." – FlexoIf this question can be reworded to fit the rules in the help center, please edit the question. add a comment| 4 Answers 4 active oldest votes up vote 26 down vote accepted Depending on what mode SQL Server was installed (Windows Authentication or Mixed Mode), you may have to do a few things. If you installed in mixed mode, you can log in as sa and add the administrator user as a Login under the Security section. Make sure you assign sysadmin role to the user, which can be found under Server Roles. If Windows Authentication mode was chosen during install then there are a couple of things you can do, but I think the easiest is just to recreate the user sadegh, login into SQL Server as that user, and follow the previous step to add the administrator user as a login. UPDATE: If all else fails, you can run SQL Server in Single User Mode, which allows a single connectio
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more http://stackoverflow.com/questions/10667318/sql-server-windows-authentication-connection-issue about Stack Overflow the company Business Learn more about hiring developers or posting ads http://stackoverflow.com/questions/13185128/how-to-use-windows-authentication-with-ssms-without-using-runas with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community 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 SQL Server windows Authentication connection issue up vote 1 down vote favorite sql server 1 While i am installing SQL Server 2008, i selected mixed authentication mode. But after the installing while i am trying to connect with the database in Windows authentication it gives the following error : TITLE: Connect to Server ------------------------------ Cannot connect to DEWASISH-PC\SQLEXPRESS. ------------------------------ ADDITIONAL INFORMATION: Login failed for user 'dewasish-PC\dewasish'. (Microsoft SQL Server, Error: 18456) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476 ------------------------------ BUTTONS: OK ------------------------------ But when in am microsoft sql server trying the same with SQL Server authentication mode, I am able to connect with the database. Can any one tell me in what manner i able to connect with the database with the help of windows authentication ? sql-server-2008 share|improve this question asked May 19 '12 at 17:15 Dewasish Mitruka 1,4661020 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote In your instance Security you'll need to add either: Your Windows login name as a Windows login user, including domain if applicable, or If you are a member of a Windows domain security group, add the group name as a Windows login user. share|improve this answer answered May 19 '12 at 17:30 John Dewey 5,03231222 how to do this? –Dewasish Mitruka May 19 '12 at 17:50 SQL Server Management Studio -> Object Explorer -> Connect as sa -> Security –John Dewey May 19 '12 at 17:55 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to t
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community 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 How to use Windows Authentication with SSMS without using RunAs? up vote 1 down vote favorite 1 I have SQL Server 2012 installed as a standalone instance in Windows 8 Enterprise edition. It is running in Mixed-mode. The currently logged in account is a member of local MACHINE\Administrators and the local BUILTIN\Administrators group is in the sysadmin role. For good measure, the current user is also in a MACHINE\SQLAdmins group which is also in the sysadmin role. When I launch SQL Server Management Studio (SSMS) from the shortcut, I can't use Windows Authentication. I get the following error: TITLE: Connect to Server Cannot connect to INSTANCENAME. ADDITIONAL INFORMATION: Login failed for user 'MACHINE\user'. (Microsoft SQL Server, Error: 18456) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476 In fact, if I launch LinqPad from a shortcut, I can't connect to the server using a connection string which relies on Windows Authentication. However, if I run SSMS or LinqPad with elevated privileges using RunAs Administrator, I can use Windows Authentication and the experience is as expected. Alternatively, I can include the RunAs command into the SSMS shortcut like so. C:\Windows\System32\runas.exe /USER:MACHINE\user