Event Viewer Error 40960
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site using C# .NET per requirements from Marketing department. TECHNOLOGY IN THIS DISCUSSION Microsoft Windows Server 2003 Microsoft Windows Server Join the Community! Creating your account only takes a few minutes. Join Now when ever i am trying event viewer error 10 to login to my server with my domain credentials it says(windows machine) windows can not connect to this domain or either the domain controller is down(which is not ) & i am getting this error in event viewer The Security System detected an authentication error for the server LDAP/prod01.xyz.com/prod.xyz.com@PROD.XYZ.COM. The failure code from authentication protocol Kerberos was "The attempted logon is invalid. This is either due to a bad username or authentication information. (0xc000006d)". This is a production box,i event viewer error 55 can not restart,need some help to resolve this without restart Reply Subscribe RELATED TOPICS: Event ID error 4226 Event ID 13508 - I'm at a loss on how to go about fixing this error Event ID 1309 Error 3005   18 Replies Thai Pepper OP SubyFly Feb 19, 2013 at 10:59 UTC Windows 2008 Server? What server are you trying to connect? The DC itself or another server in the domain? I would check attributes on the server in DC. 0 Jalapeno OP Partha Feb 19, 2013 at 11:10 UTC It's a Windows 2003 SP2(standard edition) server, & it's not DC & it's another server in domain 0 Thai Pepper OP SubyFly Feb 19, 2013 at 11:44 UTC Was it rebooted recently or power outage that you weren't aware of? Found this and it might pertain to the issue that you're dealing with. http://support.microsoft.com/kb/824217 0 Jalapeno OP Partha Feb 19, 2013 at 11:50 UTC No.it didn't reboot & it's a Virtual Machine(VMware machine).Let me check the link if it can help me 0 Jalapeno OP Partha Feb 19, 2013 at 11:53 UTC The Above link you provided didn't help me 0 Thai Pepper OP SubyFly Feb 20, 2013 at 1:08 UTC "...it is likely that a service is attempting to authenticate before the directory service is avai
Analyzer Sample report Advanced filtering Direct links to www.eventid.net Email notifications Scheduled reporting Free for subscribers EventReader Event Viewer Sample report Custom views/filters Servers list, organized in
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groups Integration with EventID.Net Consolidated view for all logs Free for subscribers event viewer error codes list Event ID: 40960 Source: LSASRV Source: LSASRV Type: Warning Description:The Security System detected an authentication error for the
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server /. The failure code from authentication protocol Kerberos was " ()". English: This information is only available to subscribers. An example of English, please! Concepts to https://community.spiceworks.com/topic/304890-how-to-resolve-event-id-40960-error understand: What is the LSA? What is an authentication protocol? What is Kerberos? What is the role of LsaSrv? Our approach: This information is only available to subscribers. An example of Our approach Comments: Dave Triffo Error: "There are currently no logon servers available to service the logon request. (0xc000005e) - In our case, we have a server that slows to a http://www.eventid.net/display-eventid-40960-source-LSASRV-eventno-8508-phase-1.htm crawl after a week or so and these errors start showing up.A reboot fixes the slowdown. x 136 Marco Using Windows Server 2008 SP1 we had to allow specifically "NetLogon service (NP In)" on port 445, and that fixed the error. x 100 Phani Kondapalli As you are aware, an error could occur due to various reasons. Analysis should be done in various angles and thus diagnosis will be specific to the findings. Solution: In my case all i did was disable all other network adapters, except the one actually connecting to the internet. I had VMware adapters, LAN adapter, some 1392 adapters and a wireless adapter (this was the main network connection). I disabled all the adapters but the wireless and it worked fine. This may be a temporary fix. x 120 Anonymous Setting NETLOGON service dependant on DNS fixed the issue for me. x 129 Anonymous I had events 40960, 40961, 1053 and 1006 after a network switch firmware upgrade. Disabling Jumboframe support from NIC resolved the case. x 113 Brent I received this error in the following situation: NT4.0
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time https://www.experts-exchange.com/questions/24956708/LSASRV-Event-Log-errors-EventID-40960.html Help Create a Freelance Project Hire for a Full Time Job http://www.itexperience.net/2011/04/06/event-40960-and-40961-after-upgrade-to-windows-2008-r2-domain-controller/ Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > LSASRV Event Log errors, EventID 40960 Want to Advertise Here? Solved LSASRV Event Log errors, EventID event viewer 40960 Posted on 2009-12-06 MS Legacy OS Windows Server 2003 1 Verified Solution 5 Comments 5,855 Views Last Modified: 2012-05-08 On our member server (not a DC just fileserv'ing), just started getting some LSASRV 40960 errors in the event log: ===== The Security System detected an authentication error for the server cifs/. The failure code from event viewer error authentication protocol Kerberos was "The attempted logon is invalid. This is either due to a bad username or authentication information. (0xc000006d)". ===== It's happening every hour or so and there is a seperate entry in this file servers log for each DC in the forest, including the DC in our child domain. The domain admin password was changed recently so i THINK it has something to do with this, if that's the cause then i can't figure out what app or service on this server is trying to authenticate with the old password. Any ideas on which service/app is causing this and how i can update the credentials its using or even if this is the cause? On the actual DC it doesn't have this issue. 0 Question by:wicked711 Facebook Twitter LinkedIn Google Best Solution bywicked711 Thanks Dan, i had already read that but none of it applied to my situtation.. until i reread it again now and the last entry: Chris Turnbull (Last update 4/26/2007): - Error code
domain controllers, I was starting to have problems at my remote offices. In the eventlog on my remote pc's, I found the following events: Event ID: 40960 Source: LsaSrv Type: Warning Category: SPNEGO (Negotiator) Description: The Security System detected an attempted downgrade attack for server . The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request. (0xc000005e)". Event ID: 40691 Type: Warning Source: LSASRV Category: SPNEGO (Negotiator) Description: The Security System could not establish a secured connection with the server ldap/SERVERNAME.DOMAINNAME.net. No authentication protocol was available. Several articles and posts stated that a VPN / SSL connection may hinder the Kerberos protocol from successfully authenticating to the domain controller / global catalog server. However, all suggestions led to nothing. At the end, the Netlogon debug mode helped me out. To enable the Netlogon Debug Mode, I created the following key on your client computer: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters] "DBFlag"=dword:2080ffff (hexadecimal value) Then open a cmd and type net stop netlogon && net start netlogon to enable the debugging mode. The Debug logging writes to C:\Windows\Debug\netlogon.log In the netlogon.log, I found that my client on the remote location could not authenticate with Kerberos and tried to fallback to NTLM. Since Windows 2008 R2 does not have NTLM enabled by default, the authentication consequently failed. Referring back to the VPN / SSL connection: Kerberos uses UDP and this is known to be unreliable through VPN tunnels. Therefor, I had to force the authentication to use TCP, using the following registry key on the client: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\Kerberos\Parameters] "MaxPacketSize"=dword:00000001 Done! The LSASRV error did not occur no more in my eventviewer and the logon speed was back to 30 secondes. Credits go to the following websites: http://support.microsoft.com/kb/244474 http://support.microsoft.com/kb/109626 http://blogs.technet.com/b/ad/archive/2009/03/20/downgrade-attack-a-little-more-info.aspx Kerberos NTLM Windows 2008 6 thoughts on “Event 40960 and 40961 after upgrade to Windows 2008 R2 domain controller” Nathan says: January 29, 2015 at 4:11 am Thanks so much for this.. spent many hours troubleshooting this issue and finally came across your solution :-) Reply free microsoft points 2014 no survey no download say