17806 Sql Error
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hell The infamous SSPI Failed error strikes again! One of our SQL servers was generating these errors for “some” Windows logins but not all. Error: 17806, Severity: 20, State: 2. ms sql server error 17806 SSPI handshake failed with error code 0x8009030c while establishing a connection with integrated
Sql Error 18452
security; the connection has been closed. [CLIENT: 192.168.1.1] Error: 18452, Severity: 14, State: 1. Login failed for user ". sql error 18456 The user is not associated with a trusted SQL Server connection. [CLIENT: 192.168.1.1] After exhausting all of the normal troubleshooting for this error (accounts locked, disabled, Sql Service accts, bad connection strings, sql server error 17806 severity 20 state 2 SPN’s, etc.) I spent the next few hours learning more about the way SQL handles authentication requests than I had ever wanted to know. The Scenario – A couple of separate individual Windows ID’s started generating these errors while attempting connections, all other windows logins were working properly. The connections were initially happening through applications, but also occurred through sqlcmd. When logged in to
Mssqlserver 17806
the server locally with the offending ID’s the connections to SQL would succeed. The Troubleshooting process – Check all the regular SSPI issues, I wont bore you with the details as they are easily searchable A relatively easy way of checking the “easy” authentication issues If possible/appropriate is to log into the SQL Server locally with the offending ID and fire up sqlcmd and connect to the server via sqlcmd –Sservername,port –E (by specifying the port you force TCP/IP instead of LPC, thereby forcing the network into the equation) Verify whether the login is trying to use NTLM or Kerberos (many ways to do this but simplest is to see if there are any other KERBEROS connections on the machine) SELECT DISTINCT auth_scheme FROM sys.dm_exec_connections If Kerberos is in use, there are a few additional things to verify related to SPN’s, since only NTLM was in use on this server I skipped that Determine if the accounts were excluded from connecting to the machine through the network through a group policy or some other AD setting After all of these checked out OK, I began to try and figure ou
(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) HomeLibraryLearnDownloadsTroubleshootingCommunityForums Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Asked by: Logon Error: 17806, Severity: 20, State: 14. SQL Server > SQL Server Security Question 0 Sign in to sspi handshake failed with error code 0x8009030c, state 14 vote Hello Eventually in a sql server 2008 r2 appear the follow error: error 17806 severity 20 state 14. in sql server 2008 r2 Message : Logon Error: 17806, Severity: 20, State: 14. SSPI handshake failed with error code 0x8009030c, state 14 while establishing a
Error: 18452, Severity: 14, State: 1.
connection with integrated security; the connection has been closed. Reason: AcceptSecurityContext failed. The Windows error code indicates the cause of failure. [CLIENT: xxxxxxxxxxx]. This server is working properly and the comunications with the application http://www.allenkinsel.com/archive/2010/06/sql-server-and-sspi-handshake-failed-error-hell/ server is done. I have been findind about this error and i have no found any thread about this issue Anyone knows how can i solve this problem? Thanks in advance Regards Monday, December 31, 2012 9:26 AM Reply | Quote All replies 0 Sign in to vote Searching on AcceptSecurityContext and 17806 on Google gave me some hits, although nothing that directly points to the problem. (By the https://social.msdn.microsoft.com/Forums/sqlserver/en-US/889f2352-6fb2-49c3-8317-5c57862159eb/logon-error-17806-severity-20-state-14?forum=sqlsecurity way, I had to use an option in the "Search tools" menu to only get verbatim hits, else I got a bunch of completely irrelevant, because Google equated AcceptSecurityContext with "ldap".) The best link was this one: http://sqlcan.wordpress.com/tag/sql-error-17806/ It describes a specific situation that the author had, and how eventually resolved after having tried both this and that. His solution is necessarily not your. The root problem is that SQL Server and the AD are not on terms with each other about the login. If you had the configuration working in the past, you should review what changes that have occurred in the domain recently. If you are not adminstering the AD yourself, you will need to talk to the Windows administrators. Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se Monday, December 31, 2012 11:43 AM Reply | Quote 0 Sign in to vote Do as below: Go to registerstart –> run … Regedit Go to: HKLM\System\CurrentControlSet\Control\LSAAdd a DWORD value called “DisableLoopbackCheck”Set this value to 1Rebooted after making this change. After this registry change was effected. Ahsan Kabir Please remember to click Mark as Answer and Vote as Helpful on posts that help you. This can be beneficial to other community members reading the thread. http://www.aktechforu
SQL Intersection conference - April 18-21, 2016 in Florida. 2 Sessions and 1 Workshop Sponsors Recent Posts Join me at SQL Intersections in October 2016 Join me at SQL Intersections for a great lineup this year! FreeCon in http://dbaduck.com/2007/08/31/error-in-sql-error-17806-error-18452-sspi-problem/ Seattle, October 27th before PASS Summit 2015 SQL Server TDE on Mirror and Log Shipping sys.dm_db_index_physical_stats Easter Egg Calendar August 2007 S M T W T F S « Jul Sep » 1234 567891011 12131415161718 19202122232425 http://www.eventid.net/display-eventid-17806-source-MSSQLSERVER-eventno-8527-phase-1.htm 262728293031 Tag Cloud Events Fragmentation Index LogShipping Mirroring Networking PASS Summit PowerShell SMO SQL TDE Vista IIS ASP Windows 7 WMI Error in SQL (Error: 17806, Error: 18452) SSPI ProblemPosted on August 31, 2007 by dbaduck • sql error 6 CommentsI recently came across this while managing a clustered SQL Server. There were various messages listed out on forums, etc., but for me we found that the error was originating because we have DNS issues and Domain Controllers (DC) was unreachable due to a network switch configuration problem. So if you see these errors, you may see in the EventLog a NetLogon error relating to not being able to reach a domain controller to sql server error login, and you will get the error below because the DC is the one that hands the Kerberos token to the process for use in SSPI related activities. Logon,Unknown,Error: 17806 Severity: 20 State: 2. Logon,Unknown,Login failed for user ". The user is not associated with a trusted SQL Server connection. [CLIENT: IPAddress] Logon,Unknown,Error: 18452 Severity: 14 State: 1. Logon,Unknown,SSPI handshake failed with error code 0x80090311 while establishing a connection with integrated security; the connection has been closed. Good luck and have a great SQL day. Filed Under: SQL Server← Working with SSIS in SQL Server 2005SQL PASS 2007 has concluded →6 Responses to Error in SQL (Error: 17806, Error: 18452) SSPI Problem Anthony Robinson says: August 1, 2008 at 10:09 So did you ever find a solution to this issue? Reply dbaduck says: August 1, 2008 at 10:24 Yes, the issue was that the DNS Server was down or misrouted and the Cluster could not find the Domain Controller. Once we reestablished connectivity to the Domain Controller, the error stopped. Reply Leon T says: May 19, 2009 at 02:34 Hi, I found that this error was caused by users who's password had expired and had decided not to change it. Although they remained logged in and were able to operate on the network. When connecting from one SQL server to the next, ker
Monitor an unlimited number of servers with $49/year With the current low prices for servers and the need for processing power, even a small company may end up with quite a few of them. If ten years ago it was still common to see an entire company using just one server, these days that's no longer the case. New computers are added to the network with the understanding that they will be taken care of by the admins. Keeping an eye on these servers is a tedious, time-consuming process. Even with 5 minutes per server (to check the logs and other parameters), it may take an hour to make sure that everything is ok and no "red lights" are blinking on any of the servers. read more... Event ID: 17806 Source: MSSQLSERVER Source: MSSQLSERVER Type: Error Description:SSPI handshake failed with error code