Error 18456 Severity 14 State 11 Sql 2008
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Sql Server Error 18456 Severity 14 State 5
with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer sql error 18456 severity 14 state 38 site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a sql error 18456 severity 14 state 8 question Anybody can answer The best answers are voted up and rise to the top Login failed for user Error: 18456, Severity: 14, State: 11 up vote 3 down vote favorite 1 I have an AD group XYZ that I have added to SQL Server security with data_reader permissions. The XYZ group has around 10 users in there who are successfully able to access the SQL Server database. I recently added
Sql Error 18456 Severity 14 State 1
a new user to this group (at AD level), but this person is not able to access SQL Server (through Mgmt Studio) and he's getting the error below Login failed for user. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. Error: 18456, Severity: 14, State: 11. I have already verified AD permissions are setup properly, user has restarted his machine, he is not part of any group that has DENY access and the SQL Server XYZ group has been removed and readded to the SQL Server instance in Mgmt Studio and server has been restarted. Any ideas on how to proceed further? Thanks! sql-server sql-server-2008-r2 active-directory share|improve this question edited Jun 17 '13 at 13:19 Yasir Arsanukaev 2,38121126 asked Mar 25 '13 at 22:19 Amam 84138 migrated from stackoverflow.com Mar 26 '13 at 6:15 This question came from our site for professional and enthusiast programmers. Can you have the new user try from another computer and see if that's the issue? Wondering if it's an AD setup issue, since your other users are working. –Jason Whitish Mar 25 '13 at 22:23 sqlblogcasts.com/blogs/simons/archive/2011/02/01/… –Aaron Bertrand♦ Mar 25 '13 at 22:26 Has the user logged off and logged o
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Sql Error 18456 Severity 14 State 6
R2 system (10.50.4000) where I'm having problems connecting any user that is not a SysAdmin. Example: I setup a new SQL Login to use Windows Authentication and grant that user http://dba.stackexchange.com/questions/37564/login-failed-for-user-error-18456-severity-14-state-11 db_datareader on the target database. The user attempts to connect using Excel client or Access or SQL Management Studio and receives Error 18456. The SQL Server Logs shows Error 18456 Severity 14 State 11 Login Failed for user _ Reason Token-based server access validation failed with an infrastructure error. The strange part is that if I temporarily grant the user the https://social.msdn.microsoft.com/Forums/sqlserver/en-US/220cee33-3e51-414e-bb89-0619589fbf69/nonsysadmins-get-error-18456-severity-14-state-11-login-failed-for-user-reason-tokenbased-server?forum=sqlsecurity sysadmin server role then the user can connect successfully and retrieve data. But, if I take away thatsysadmin server role then the user can no longer connect but again receives theError 18456 Severity 14 State 11 Login Failed for user _ Reason Token-based server access validation failed with an infrastructure error. We've turned off UAC on the client machine to see if that was the problem, but no change. I have dropped and re-added the user's SQL Login (and the related database user login info). No success. The Ring Buffers output shows: TheCalling API Name: LookupAccountSidInternal API Name: LookupAccountSid Error Code: 0x534 Thanks for any help. -Walt Monday, March 17, 2014 2:20 PM Reply | Quote Answers 0 Sign in to vote The issue here is most certainly lack of CONNECT permmission somewhere. Try this: GRANT CONNECT ON ENDPOINT::[TSQL Default TCP] TO public This connect is granted by default, but it can be revoked. If this does not work out, please post the output of SELECT * FROM sys.server_permissions Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se Proposed as answer by Sofiya LiM
Escalation Services team. Why do I get the infrastructure error for login failures? ★★★★★★★★★★★★★★★ psssqlJuly 9, 20161 0 0 0 In https://blogs.msdn.microsoft.com/psssql/2016/07/09/why-do-i-get-the-infrastructure-error-for-login-failures/ the past few weeks, I saw this error come across quite a http://weblogs.sqlteam.com/billg/archive/2014/10/08/error-18456-severity-14-state-11.aspx bit and thought I will provide an explanation for the reasons why we generate this error. It is very possible that you came across either one of the flavors of the two error messages shown below: 2016-07-08 23:53:59.63 Logon Error: 18456, Severity: 14, State: 11.2016-07-08 23:53:59.63 Logon Login failed error 18456 for user ‘IAAS6620137\MyInfraWindowsLogin'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: 10.107.10.43]2016-07-08 23:51:33.05 Logon Error: 18456, Severity: 14, State: 12.2016-07-08 23:51:33.05 Logon Login failed for user ‘MyInfraSQLLogin'. Reason: Login-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: 10.107.10.43] As you can see there are two flavors here: - The token-based error 18456 severity message is generated for the Windows authentication logins - The login-based message is generated for the SQL authentication logins The important piece of information from that message is the part about server access validation failed. So let’s examine that carefully. During the login process, the database engine has to perform several checks regarding the login and its various attributes before letting the application connect to the SQL Server instance. Out of that big list, related to this error condition, there are two checks to find out if this login is authorized to access this server instance. There are two permissions that come into play while performing these authorization checks: - Does the login have the SERVER class permission named CONNECT SQL for this server instance? - Does the login have the ENDPOINT class permission named CONNECT for the specific endpoint on which the client application established the connection? Here is a sample query that lists both the permission classes we mentioned above and which logins or roles have it granted. I highlighted the two logins I created for this experiment [MyInfraSQLLogin and MyInfraWin
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