Repair Windows Server 2003 Kerberos Error 4 Tutorial

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Windows Server 2003 Kerberos Error 4


You can use the following method to determine of there are any duplicate machine names registered in the same forest. Suppose there are 2 machine accounts named FOO in DomainA, and DomainB, but the server really lives in DomainB, then users in domain A would get the error. x 166 Anonymous In our case, this error began after we changed the ip address of Windows 2003 domain controller and added a new Windows 2008 R2 domain controller on the When the user went to unlock the machine with the old password immediately following the password change, this error was generated from the locked workstation.

Note: It could be that the SPN's are case-sentitive, so check your server- and domain-names just in case! (See Shane Young's blog entry) Computer account secure connectionSome clients/servers fail to setup Monday, February 06, 2012 1:28 PM Reply | Quote 0 Sign in to vote You need to purge ticket on problametic DC and stop kdc of all DC except the PDC This caused several A records to have the same IP address registered, causing Event ID 4 when the KDC did not know which client was the right one. I would also reccomend to configure your DHCP to dynamically update records, you will need to provide credentials to do this. view publisher site

The Kerberos Client Received A Krb_ap_err_modified Error From The Server Cifs

Solution applied: To solve this issue, I took the following steps: Unregister the bad service entry : setspn –D MSOMSdkSvc/SCSMDW SCSMDW Unregistering ServicePrincipalNames for CN=SCSMDW,CN=Computers,DC=wsdemo,DC=com MSOMSdkSvc/SCSMDW Updated object Register the Custom search for *****: Google - Bing - Microsoft - Yahoo Feedback: Send comments or solutions - Notify me when updated Printer friendly Subscribe Subscribe to EventID.Net now!Already a subscriber? Verify that a cached Kerberos ticket is available.

  1. The applications running on those computers where throwing a wobbler as well.
  2. Open the file and search for all occurrences of the name list in the error 4 (omitting the $).
  3. And if none is configured for that account you must of course map the SPN to it.

-Jay 1 Poblano OP Ron Gallimore Jan 2, 2013 at 2:34 UTC Sorry to bring up this up again but we had the exact same issue on If the machine is not in same domain as the client reporting the error, verify that a duplicate computer does not exist in the local domain with the same name as From a newsgroup post: - Upgrade to the latest SP. Security-kerberos Event Id 4 Domain Controller 2008 The target name used was cifs/server1.domain.local This indicates that the target server failed to decrypt the ticket provided by the client.

Be aware that 6 weeks are not a problem with the tombstone lifetime but you should try to have all DCs up and running always.Best regards Meinolf Weber Disclaimer: This posting Event Id 4 Security-kerberos Spn TechNet Products Products Windows Windows Server System Center Browser   Office Office 365 Exchange Server   SQL Server SharePoint Products Skype for Business See all products » IT Resources Resources Evaluation This occurred because of a mistake during a branch rollout. Please contact your system administrator.For more information, see Help and Support Center at

x 67 EventID.Net As per Microsoft: "Kerberos cannot authenticate the Web program user because the server cannot verify the Kerberos authentication request sent by the client. Event Id 4 Exchange 2013 The situation occured on each node of our Exchange 2007 CCR mailbox cluster with some regularity. Comments: Kurisuchianu In my case the issue was due to scavenging not enabled in reverse DNS zones. Event ID: 4 Source: Kerberos Source: Kerberos Type: Error Description:The kerberos client received a KRB_AP_ERR_MODIFIED error from the server $.

Event Id 4 Security-kerberos Spn

If kerberos thinks it is communicating with pcA it encrypts the kerb ticket with the password of pcA. Login here! The Kerberos Client Received A Krb_ap_err_modified Error From The Server Cifs You may get a better answer to your question by starting a new discussion. Security Kerberos Event Id 4 Domain Controller Do i need to run the purge and stop the KDC serivce on all the other DCs or just the one that is not syncing.

I have gone through active directory and DNS and cannot see any duplicate entries for the server. Monday, February 06, 2012 9:05 AM Reply | Quote 0 Sign in to vote Thanks sandesh, one final question if i may before doing the procedure. If the server can decrypt the ticket, the server then knows that it was encrypted by a trusted source (the DC) and the presenter (the client) is also trusted. ANS.This will not have any impact on other DC. Event Id 4 Security Kerberos Windows 7

Many thanks for any help Sunday, February 05, 2012 8:55 PM Reply | Quote Answers 4 Sign in to vote You are getting error "Logon Failure: target Best Regards Elytis Cheng Please remember to click “Mark as Answer” on the post that Elytis Cheng TechNet Community Support

Tuesday, February 07, 2012 7:33 AM Reply | Quote Moderator x 10 Michael Papalabrou This problem has occurred after bringing up a new machine to replace an old one that failed, without first removing the old computer account from the domain. have a peek here This indicates that the password used to encrypt the kerberos service ticket is different than that on the target server.

Ensure that the service on the server and the KDC are both configured to use the same password. This Indicates That The Target Server Failed To Decrypt The Ticket Provided By The Client You can find information about this in Microsoft knowledgebase article KB244474 (

  Other problems with Kerberos You can have other error-messages in your Windows eventlog, and please look all Many Thanks Monday, February 06, 2012 9:13 AM Reply | Quote 0 Sign in to vote HI, I am about to run the Netdom command, but unsure which server to run

x 9 Dave Markle I have found the resolution to this issue.

Deleting the old machine account from AD resolved the problem. Monday, February 06, 2012 8:57 AM Reply | Quote 0 Sign in to vote Q.Reset the Server domain controller account password on Server1 (the PDC emulator .Will this impact on any Please ensure that the target SPN is registered on, and only registered on, the account used by the server. Kerbtray.exe Windows 2008 R2 Hope this helps!

There were some Kerberos caching issues fixed in WinXP SP1. - The log might indicate an account name collision in your domain. x 238 Vlastimil Bandik I was experiencing issues with NETLOGON, SPN records, Kerberos, NLTEST, and connections beetwen servers and domain controllers. The SBS server was the only DC in the domain. Check This Out This should solve your issues.

Email check failed, please try again Sorry, your blog cannot share posts by email. %d bloggers like this: Home Security-Kerberos System Event ID 4 by Jeremy939 on Nov 23, 2012 at The target name used was %3. In my case, that solved the problem. Microsoft Customer Support Microsoft Community Forums United States (English) Sign in Home Windows Server 2012 R2 Windows Server 2008 R2 Library Forums We’re sorry.

A workstaton was named the same in two sites, causing the second machine (when it had finished our automated build) to be tombstoned from the domain (no-one could logon to the Given the short name FOO, users in DomainA would acquire a service ticket to DomainA\FOO, and then present it to the DomainB\FOO server. Please contact your system administrator. If the server name is not fully qualified, and the target domain (WSDEMO.COM) is different from the client domain (WSDEMO.COM), check if there are identically named server accounts in these two

At the same time, in the event viewer of my systems I had the following error message : Log Name: System Source: Microsoft-Windows-Security-Kerberos Event ID: 4 Task Category: None Level: Error If the target server has a different password than the DCs, the session ticket cannot be decrypted and the failure occurs. The problem is that the error can come from in a couple of reasons. This can happen if a computer account was moved to a different forest and the original computer account object was not deleted.

To resolve this issue, you should use Active Directory Users and Computers to delete the original computer account that is no longer used. i'm getting this on w2k3 running e2k3 Event Type: ErrorEvent Source: KerberosEvent Category: NoneEvent ID: 4Date: 1/16/2007Time: 9:49:34 AMUser: N/AComputer: server nameDescription:The kerberos client received a KRB_AP_ERR_MODIFIED error from the server