There are myriad reasons why this could crop up. SQL Server Exception , EXCEPTION_ACCESS_VIOLATION and SQL Server Assertion. Below query will fetch all the SQL Server SPN’s from active directory and print in c:\temp\spnlist.txt. Syntax: Setspn -D "MSSQLSvc/FQDN:port" "SAMAccount name which has duplicate SPN ", Setspn -D " MSSQLSvc/node2.mssqlwiki.com:1433" "DOMAIN\Accountname". Unblock remote access. Hope this helps, Rogério Brito : rbrito@{ime.usp.br,gmail.com} : GPG key 4096R/BCFCAAAA you have to add the account which you are using to “Access this computer from the network” local security policy (secpol.msc) on the SQL Server box and post which you were successfully First, check that the basic Remote Desktop setting is enabled. How do I identify which SPN is duplicate? If your Domain controller is windows2008R2 or lower  grant Read servicePrincipalName and Write servicePrincipalName privilege for startup account of SQL Server using ADSIEDIT.msc tool, Launch the ADSI Edit -> Domain -> DC=DCNAME,DC=com -> CN=Users -> CN=SQLServer_ServiceAccount -> Properties -> security tab-> advanced ->Add self -> Edit ->in permissions ->Click properties -> grant ->Read servicePrincipalName and ->  Write servicePrincipalName, If your domain controller is Windows2012 grant Validate write to service principal name for startup account of SQL Server using Active directory user and computers snap in. How to move the LOB data from one file group to other? 4. Remote to PC issue"An authentication error has occured. How to check If SQL Server is suing Kerberos authentication? Connection failures caused by Kerberos authentication issues drives majority of questions in MSDN and other SQL Server forums. We think this error we see in the logs of the SQL server may be related. If the client is able to get the ticket and still Kerberos authentication fails? Further action is only required if Kerberos authentication is required by authentication policies and if the SPN has not been manually registered. She enjoys sharing effective solutions and her own experience to help readers fix various issues with computers, dedicated to make their tech life easier and more enjoyable. Any help or insight that anyone could provide, even if it just gets me started, would be very useful. You can follow the question or vote as helpful, but you cannot reply to this thread. THis could be a problem with an expired password. How do I  make SQL Server register SPN’s automatically? (Microsoft SQL Server, Error: 18456) Login failed for user ‘(null)’ Login failed for user ” Login failed. I see SQL Server could not register SPN error message in SQL Server errorlog. Sp_rename fails : Either the parameter @objname is ambiguous or the claimed @objtype (object) is wrong. This may lead to authentication problems. Amanda Follow us. SQL Server performance degraded in 32-Bit SQL Server after adding additional RAM. Position: Columnist Amanda has been working as English editor for the MiniTool team since she was graduated from university. The Local Security Authority cannot be contacted. Each time I do, I solve it and forget about it, so that it stymies me for a few minutes the next time I run into it. The command cannot be processed, False warning “A significant part of sql server process memory has been paged out”. Post was not sent - check your email addresses! Security Authority cannot be contacted   [CLIENT: 10.133.21.73]". Service pack ,Hotfix and CU installation for SQL Server 2005 might fail with “Unable to install Windows Installer MSI file“, A significant part of SQL Server process memory has been paged out. SPN is automatically registered by SQL Server using the startup account of SQL Server when SQL Server starts and deregistered when SQL Server is stopped. If the client is unable to get the ticket then you should see an error similar to one below. login failed for user NT Authority Anonymous, Login failed for user ‘NT AUTHORITY\ANONYMOUS LOGON’. Parallels Remote Application Server; Parallels Desktop for Mac Business Edition External dump process returned no errors.DoMiniDump () encountered error, Process 0:0:0 ( ) Worker appears to be non-yielding on Scheduler, Known issues: SQL Server Cluster and standalone Setup, SQL Agent MaxWorkerThreads and Agent subsystem, Windows 2008 and Windows 2008 R2 Known issues related to working set /Memory, SQL Server connectivity, Kerberos authentication and SQL Server SPN (Service Principal Name for SQL Server), Troubleshooting Transactional replication Latency using Agent Statistics, The connection to the primary replica is not active. Search for duplicate SPN in the output file (spnlist.txt). Note: You have to do the change both in 32-Bit and 64-Bit SQL Server native client configuration in your client systems. Hi, To address your issue: you have to add the account which you are using to “Access this computer from the network” local security policy (secpol.msc) on the SQL Server box and post which you were successfully able to connect to the instance from the application. SEC_E_INTERNAL_ERROR 0x80090304: The Local Security Authority cannot be contacted: SEC_E_SECPKG_NOT_FOUND 0x80090305 : The requested security package does not exist: SEC_E_NOT_OWNER 0x80090306: The caller is not the owner of the desired credentials: SEC_E_CANNOT_INSTALL 0x80090307: The security package failed to initialize, and cannot be … Most of you would already be aware of Kerberos authentication in SQL Server (http://technet.microsoft.com/en-us/library/cc280744%28v=sql.105%29.aspx) It is mandate for delegation and highly secured method for client server authentication. Ping the SQL Server name and IP address (with –a ) and  identify if it is able to resolved to fully qualified name DNS name, If it is not able to resolve to FQDN of SQL Server then fix the DNS settings. Windows 10 update causes "Local Security Authority cannot be contacted" RSS 7 replies Last post Jul 08, 2017 10:09 PM by slcosta Hi, To address your issue: you have to add the account which you are using to “Access this computer from the network” local security policy (secpol.msc) on the SQL Server box and post which you were successfully able to connect to the instance from the application. The problem often appears after an update has been installed on either the client or the host PC and it causes plenty of problems on many different versions of Windows. Reason: AcceptSecurityContext failed. If the SAM account is not the startup account of SQL Server then it as duplicate SPN. The login is from an untrusted domain and cannot be used with Windows authentication. To do so: I have run into this error a few times in the past. Ldifde -f c:\temp\spnlist.txt -s YourDomainName -t 3268 -d "" -r "(serviceprincipalname= MSSQLSvc/*)". To force SQL Server to use NP protocol you can use any one of the below methods. United States (English) This is how you can fix the #RDP Authentication error, local security authority error; i. The inner exception is "Win32Exception: The Local Security Authority cannot be contacted". There is a duplicate SPN in active directory how do I delete? So you can use nltest /SC_QUERY:YourDomainName to check the domain connection status. Check that Remote Desktop is enabled in #Windows. The Local Security Authority cannot be contacted My environment is SQL Server 2019 on Linux CU1 (CentOS 8) and Windows Server 2019 AD. The Local Security Authority cannot be contacted. SPN’s are registered properly, there is no duplicate SPN but still the Kerberos authentication is not working ? Change the order of client protocols and bring Named pipes before the TCP/IP protocol (SQL Server configuration manager -> SQL Server native client configuration -> Client protocols -> Order – >Bring Named pipes above TCP/IP). The Local Security Authority Cannot be Contacted Switch to Google #DNS. While connecting Windows Server 2012(or R2) using RDP you might notice error which says “An authentication error occurred. However, for me it has always been one: User must change password on next logon. Make sure that this computer is connected to the network. What is next? This is an informational message. All postings on this blog are provided “AS IS” with no warranties, and confers no rights, Posted in Connectivity, Security | Tagged: Cannot generate SSPI context, Error: 18456), Failure to register a SPN might cause integrated authentication to use NTLM instead of Kerberos, Login failed for user ‘NT AUTHORITY\ANONYMOUS LOGON’. SELECT net_transport, auth_scheme FROM sys.dm_exec_connections WHERE session_id = @@spid. To address the SSPI Handshake failed errors, always review the security logs post enabling Audit … 3. I don't know whether this would cause this issue Remote Desktop - The Local Security Authority cannot be contacted Remote Desktop (RDP) connection to Windows 7 computer (from Windows 10 RDP client) fails with the following error: Remote Desktop Connection Sorry, your blog cannot share posts by email. SQL Server Developer Center Sign in. Posted by Karthick P.K on December 9, 2013, SQL Server connectivity, Kerberos authentication and SQL Server SPN  (SQL Server Service Principal Name ). Kerberos authentication would fail when the SPN is not registered (or) when there is duplicate SPN’s registered in Active directory (or) client system is not able to get the Kerberos ticket (or) DNS is not configured properly. SSPI handshake failed with error code 0x80090311 while establishing a connection with integrated security; the connection has been closed SSPI handshake failed with error code 0x80090304 while establishing a connection with integrated security; the connection has been closed, Note: For the last two errors error code translates to, Error -2146893039 (0x80090311): No authority could be contacted for authentication Error -2146893052 (0x80090304): The Local Security Authority cannot be contacted. with 7 comments One of these days, after adding some extra vLans to my Hyper-V server cores , I started to get the error: “The local security authority cannot be contacted” – Remote Desktop By Alex Hyett on 25 November 2015 02 July 2018 in Software Developent Recently I had to restore a number of virtual machine servers from a previous snapshot. (Microsoft SQL Server, login failed for user NT Authority Anonymous, SSPI handshake failed with error code 0x80090304 while establishing a connection with integrated security the connection has been closed, SSPI handshake failed with error code 0x80090311 while establishing a connection with integrated security the connection has been closed, The SQL Server Network Interface library could not register the Service Principal Name (SPN) | 39 Comments ». SQL Server Operating system (SOS) – Series 3, SQL Server Operating system (SOS) – Series 2, SQL Server Operating system (SOS) – Series 1, SQL Server fails to start with error "Failed allocate pages: FAIL_PAGE_ALLOCATION 1" During startup. "SSPI handshake failed with error code 0x80090304, state 14 while establishing a connection with integrated security; the connection has been closed. In many situations (for example, if the local computer is not a member of the remote computer’s domain), the Remote Desktop Connection application cannot process a request to change a user’s password if network level authentication is enabled. Amanda Follow us. Multi Threaded OVELAPPED and Nonbuffered I/O Example, SQL-Server resource fails to come online IS Alive check fails. What does MemoryUtilization in sys.dm_os_ring_buffers and Memory_utilization_percentage in sys.dm_os_process_memory represents? Failure to register a SPN might cause integrated authentication to use NTLM instead of Kerberos. Position: Columnist Amanda has been working as English editor for the MiniTool team since she was graduated from university. What is RESOURCE_SEMAPHORE_QUERY_COMPILE? If you liked this post, do like us on Facebook at https://www.facebook.com/mssqlwiki and join our Facebook group, Karthick P.K |My Facebook Page |My Site| Blog space| Twitter, The views expressed on this website/blog are mine alone and do not reflect the views of my company or anyone else. Some of the common errors you would get when Kerberos  authentication fails include. When SQL Server could not register SPN’s during the startup below error message is logged in SQL Server error log? Kerberos authentication would fail when the SPN is not registered (or) when there is duplicate SPN’s registered in Active directory, (or) client system is not able to get the Kerberos ticket (or) DNS is not configured properly. Check Group Policy's Remote Desktop Services settings. Very strange problem I'm so that I could quickly move files around if needed -- and all was well. Remote Desktop - The Local Security Authority cannot be contacted Remote Desktop (RDP) connection to Windows 7 computer (from Windows 10 RDP client) fails with the following error: Remote Desktop Connection Before we jump into troubleshooting Connection failures caused by Kerberos authentication let see how to force SQL Server to use Named pipes protocol when you get above errors and workaround the problem  till you fix the Kerberos authentication with TCP/IP. For the last two errors error code translates to. 7. Login failed for user ‘(null)’  Login failed for user ” Login failed. This could be caused by an outdated entry in the DNS cache. © 2021 Parallels International GmbH. does not have a computer account for this workstation trust relationship. Enter your email address to subscribe to this blog and receive notifications of new posts by email. v. Flush DNS #Cache. Prefix the SQL Server instance name with np: Change the order of client protocols and bring Named pipes before the TCP/IP protocol (SQL Server configuration manager -> SQL Server native client configuration -> Client protocols -> Order – >Bring Named pipes above TCP/IP), For the Kerberos authentication to work in SQL Server, SPN (Service principal name)  has to be registered for SQL Server service. Security logs would give a good amount of  information needed to address this issues. Server       The SQL Server Network Interface library could not register the Service Principal Name (SPN) [ MSSQLSvc/node2.mssqlwiki.com ] for the SQL Server service. RDP connection to Remote Desktop server running Windows Server 2008 R2 may fail with message The Local Security Authority cannot be contacted 10/12/2020 2 minutes to read The backup of the file or filegroup "" is not permitted because it is not online. This forum has migrated to Microsoft Q&A. The LSA cache contains entries for security entities that have logged on to the machine while it was online and had access to a Domain Controller - … Failure to register a SPN might cause integrated authentication to use NTLM instead of Kerberos. or not. (SQLServer) Initializing the FallBack certificate failed with error code: 1, state: 1, error number: -2146893802. login failed for user NT Authority Anonymous. Wait until there are no active operations, and then try to configure the server again, SQL Server setup fails with “Failed to retrieve data for this request”. Run the KLIST exe from the client and check if it is able to get the ticket, Klist get MSSQLSvc/node2.mssqlwiki.com:1433, If the client is able to get the ticket then you should see a output similar to one below, c:\Windows\System32>Klist get MSSQLSvc/node2.mssqlwiki.com:1433. The Windows error code indicates the cause of failure. You can use below commands, Klist get Host/FQDN of DC where SQLServer is installed, Klist get Host/FQDN of SQLServer Machine name. In many situations (for example, if the local computer is not a member of the remote computer’s domain), the Remote Desktop Connection application cannot process a request to change a user’s password if network level authentication is enabled. Windows 10 update causes "Local Security Authority cannot be contacted" RSS 7 replies Last post Jul 08, 2017 10:09 PM by slcosta If all the tickets are failing then most probably the issue should be with DNS/Network setting, you can troubleshoot further based on the error you receive from klist or collect Netmon traces to troubleshoot further. Windows return code: 0xffffffff, state: 53. The problem prevents them from connecting and it displays the “The Local Security Authority Cannot be Contacted” error message. Cannot bring the Windows Server Failover Clustering (WSFC) resource (ID ‘ ‘) online (Error code 5018). 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