I am getting the below frequent lockout error messages in couple of servers, can someone help me on fixing this please? Logon Failure: Reason: Account locked out User Name: Domain: Logon Type: 3 Logon Process: Authz Authentication Package: Kerberos Workstation Name: Server12 Caller User Name: Server12$ Caller Domain: Net.com Caller Logon ID: (0x0,0x3E7) Caller Process ID: 1064 Transited Services: - Source Network Address: - Source Port: -

Hello, start with account lockout tools and also check for Conficker Virus: http://www.microsoft.com/downloads/en/details.aspx?familyid=7AF2E69C-91F3-4E63-8629-B999ADDE0B9E&displaylang=en http://technet.microsoft.com/en-us/library/cc738772(WS.10).aspx http://www.pbbergs.com/windows/articles/UserAccountLockoutTroubleshooting.html http://support.microsoft.com/kb/109626 Conficker: http://support.microsoft.com/kb/962007Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

hi Meinolf, Thanks for your prompt reply, I couldn't find the conficker virus in those systems. I have done an full system scan on both the server and confirmed with symantec on the updated definition files. I have just patched appinit.reg, will restart and let you know the progress.

Hi Jaichandru, Please also let us know the Event ID. This thread has some more information Account keeps locking out http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/415d165e-a004-479c-9644-b7f9263fc6d8/ Hope it helps.This posting is provided "AS IS" with no warranties, and confers no rights. Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.