Error 18456 Severity 14 State 16 Login Failed
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Error 18456 Severity 14 State 5 Login Failed For User
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Error 18456 Severity 14 State 38 Nt Authority System
vote favorite We had the problem with source: logon error:18456,severity:14, state 16 login failed for user 'user name' client [XXXX] XXXX: is our IP address on our SQL Server 2005 machine. The important points are The error came and gone by itself That to for only one database Mainly occurs at night (7pm-8am) Above error is very very less in day time (8am-6pm) Thanks in advance sql-server sql-server-2005 iis-6 share|improve this question edited
Error 18456 Severity 14 State 38 Sql 2008 R2
Mar 20 '13 at 6:02 marc_s 452k938641029 asked Mar 20 '13 at 5:09 Manikanta 1114 What does this have to do with ii6 and c#-2.0? Also, what is your question?! –Danny Beckett Mar 20 '13 at 5:12 because above error is occurs in SQL server log but for clients the error will look like this Exception Details: System.Data.SqlClient.SqlException: Cannot open database "db" requested by the login.so i tagged in C# 2.0 The login failed. Login failed for user 'user'. –Manikanta Mar 20 '13 at 5:23 Understanding "login failed" blogs.msdn.com/b/sql_protocols/archive/2006/02/21/536201.aspx –Igor Borisenko Mar 20 '13 at 5:25 @Igor, it's all about the State, and there's no State 16 in that link. Early indications show me that State 16 is an old, generic message, meaning the db couldn't be opened. Either the user lacks permissions or the server is inaccessible: sqlblog.com/blogs/aaron_bertrand/archive/2011/01/14/… –Danny Beckett Mar 20 '13 at 5:28 add a comment| 2 Answers 2 active oldest votes up vote 0 down vote I've seen this in the past. After researching around we found that this was due to the user not having permission to login to the database that has been setup as their default. It was a newly setup DB user for use by SSIS imports. We used ALT
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Error 18456 Severity 14 State 11 Nt Authority Anonymous Logon
Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the error 18456 severity 14 state 38. sql server 2008 r2 community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Login failed for user Error: 18456, Severity: http://stackoverflow.com/questions/15515823/severity-14-error-state-16-on-our-sql-server-2005-login-failed-for-user-userna 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 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: http://dba.stackexchange.com/questions/37564/login-failed-for-user-error-18456-severity-14-state-11 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 on since the group assignment? If not, the user needs to do that for the group assignment to take effect. See my answer here. –Jon Seigel Mar 26 '13 at 13:26 I had the user restart his laptop and even tried accessing from another computer but no luck.. –Amam Mar 29 '13 at 14:30 Checkout these 2 threads would be help you: social.msdn.microsof
of Plan Explorer and a performance monitoring and event management platform for the Microsoft Data Platform and VMware. He has been blogging here http://sqlblog.com/blogs/aaron_bertrand/archive/2011/01/14/sql-server-v-next-denali-additional-states-for-error-18456.aspx at sqlblog.com since 2006, focusing on manageability, performance, and new features, and also blogs at blogs.sentryone.com and SQLPerformance.com; has been a Microsoft MVP since 1997; tweets as @AaronBertrand; and speaks frequently at major conferences, http://www.dbforums.com/showthread.php?1633954-Error-18456-Severity-14-State-16-Login-failed-for-user-sa 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 unable to access SQL Server, credentials changing over time, error 18456 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 (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 error 18456 severity 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 - 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
for user 'sa'. If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 12 of 12 Thread: Error: 18456, Severity: 14, State: 16. Login failed for user 'sa'. Tweet Thread Tools Show Printable Version Subscribe to this Thread… Search Thread Advanced Search Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 09-16-08,05:37 #1 TanveerAhmed View Profile View Forum Posts Registered User Join Date Jul 2008 Posts 9 Unanswered: Error: 18456, Severity: 14, State: 16. Login failed for user 'sa'. Hi, Since morning I have observed the following errors in sql 2005 error logs Error: 18456, Severity: 14, State: 16. Login failed for user 'sa'. [CLIENT: XXX.XXX.XX.XXX] (where XXX represents Ip address of client machine) After that the client machines are not getting connected to sql server. Actually I have 2 applications connected to the same sql server. One is working perfectly fine while the other is not able to connect. Both the applications are connected through sa. Can someone please help me to solve this issue. Note : SQL Server version is SQL Server 2005 standard Edition with SP2 Reply With Quote 09-16-08,05:45 #2 gvee View Profile View Forum Posts Visit Homepage www.gvee.co.uk Join Date Jan 2007 Location UK Posts 11,422 Provided Answers: 10 Someone correct me if I'm wrong - but I was taught that one of the first things to do when you get a new SQL Server is to password the sa account, disable it, and forget the password... George Home | Blog Reply With Quote 09-16-08,08:03 #3 Pat Phelan View Profile View Forum Posts Visit Homepage Resident Curmudgeon Join Date Feb 2004 Location In front of the computer Posts 15,579 Provided Answers: 54 My guess is that one client has the correct password for "sa" and the other client has the wrong password for "sa". George is right. The "sa" login is an anacronism... The "sa" login should not be used by well written software written since SQL 2000 sp3. If you