Error 18456 Sql Server 2005 State 16
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Sql Server Error 18456 State 28000
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Sql Server Error 18456 State 1
on our SQL Server 2005 ,login failed for user 'username' up vote 1 down 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 sql server error 18456 state 38 (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 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
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Sql Server Error 18456 State 11
On Home » SQL Server 7,2000 » Administration » Error: 18456, Severity: microsoft sql server error 18456 state 1 14, State: 16.Login... 15 posts,Page 1 of 212»» Error: 18456, Severity: 14, State: 16.Login failed for user error 18456 sql server 2008 windows authentication 'sa'. [CLIENT: XXX.XXX.XX.XXX] Rate Topic Display Mode Topic Options Author Message Tanveer-700199Tanveer-700199 Posted Tuesday, September 16, 2008 3:35 AM SSC Rookie Group: General Forum Members Last Login: Sunday, April http://stackoverflow.com/questions/15515823/severity-14-error-state-16-on-our-sql-server-2005-login-failed-for-user-userna 18, 2010 10:49 PM Points: 32, Visits: 134 Hi,Since morning I have observed the following errors in sql 2005 error logsError: 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 http://www.sqlservercentral.com/Forums/Topic570042-5-1.aspx 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 Post #570042 GilaMonsterGilaMonster Posted Tuesday, September 16, 2008 4:30 AM SSC-Forever Group: General Forum Members Last Login: Today @ 8:57 AM Points: 45,373, Visits: 43,645 State 16 means that the default DB or the DB requested by the login is not available. Check what DB the app in question wants and make sure that it's accessible (present and online)Why are your apps using the sa login? It's a security worst practice.In the future, please post SQl 2005-related questions in the SQL 2005 forums. Thanks Gail ShawMicrosoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)SQL In The Wild: Discussions on DB performance with occasional diversions into recoverabilityWe walk in the dark places no others will enterWe stand on the bridge and no one may pass Post #570066 Tanveer-700199Tanveer-700199 Posted Tuesday, Septembe
SQL Server experts to answer whatever question you can come up with. Our new SQL Server Forums are http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=110713 live! Come on over! We've restricted the ability to create new threads on these forums. SQL Server Forums Profile | ActiveTopics | Members | Search | ForumFAQ Register Now http://sql-articles.com/articles/troubleshooting/troubleshooting-login-failed-error-18456/ and get your question answered! Username: Password: Save Password Forgot your Password? All Forums SQL Server 2005 Forums SQL Server Administration (2005) Error: 18456, Severity: 14, State: 16. Reply to error 18456 Topic Printer Friendly Author Topic tanveerahmed Starting Member 6 Posts Posted-09/16/2008: 05:43:49 Hi,Since morning I have observed the following errors in sql 2005 error logsError: 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 sql server error 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 SwePeso Patron Saint of Lost Yaks Sweden 30421 Posts Posted-09/16/2008: 05:50:26 Is one of the clients using the wrong password for sa account?E 12°55'05.63"N 56°04'39.26" YellowBug Aged Yak Warrior United Kingdom 616 Posts Posted-09/16/2008: 09:20:04 The error state of 16 means "The incoming user does not have permissions to log into the target database"Check - the user specified a database that they don't have permission to (unlikely with SA).- you've specified a database that doesn't exist (maybe you misspelled the database's name). - the target database is in single-user mode.I find the error state very helpful in trouble-shooting "Login failed" issues tanveerahmed Starting Member 6 Posts Posted-09/17/2008: 05:43:04 Hi ,Thanks for your reply..I have checked all the possibility. ie the us
= 18456 Output: Login failed for user ‘%.*ls'.%.*ls%.*ls This is one of the infamous error message (and number) that most of the DBAs and developers have come across while working on SQL server. This message simply denotes that the client call was able to reach the SQL server and then an ACCESS was denied to the particular login for a reason. To figure out the exact reason, this error number 18456 with its STATE number is logged into the SQL server error log file, if SQL server was allowed or configured to capture the failed logins. Configuring SQL server for capturing login failures: By default, SQL server is configured to capture only failed logins but it can be changed to any of the options as mentioned in this books online link http://technet.microsoft.com/en-us/library/ms188470.aspx Below figure shows these options to have login failed messages written into error log Accessing Error log: Now that, we know SQL server logs all login failed messages into its error log and windows event viewer but how do I access them? Windows event viewer: GO to start –> Run –> Eventvwr –> open up the application logs, and now we could see the login failed error message with computer name, instance name, date and time and finally the reason for the login failed SQL Error log: SQL server error log can be viewed from multiple places If we have gained access or can gain access to SQL server with different logon credentials then always use sp_readerrorlog, xp_readerrorlog or use the GUI option of opening up Management node –> SQL server Logs –> View –> SQL server log. Same sample shown above looks like In a case where we cannot gain access to SQL server, then we may use the actual error log path and open the txt file physically from the file system. Use SQL server configuration manager to find the error log path and from there you could open the file. Get the value next to –e parameter and that gives the actual error