Domain accounts locked out regularly

Hi,
I have quite a number of invalid log-on daily and causing locked out.
Action taken,
1. Unselected IPv6 from Windows 7 workstation
2. Follow PSS troubleshooting method
http://blogs.technet.com/b/instan/archive/2009/09/01/troubleshooting-account-lockout-the-pss-way.aspx
3. Using NetWrix Account Lockout Examiner - All results good fine except having lot of invalid logon; ranging from 20 to 60.
4. Netstat output from Windows 7 workstation
Active Connections
Proto Local Address          Foreign Address        State           Offload State
TCP    10.82.0.11:49182       austin801ai:52230      ESTABLISHED     InHost
TCP    10.82.0.11:50231       sippoolbl20a02:https   ESTABLISHED     InHost
TCP    10.82.0.11:50253       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50254       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50278       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50279       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50280       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50281       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50298       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50301       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50306       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50307       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50315       autocache:8080         ESTABLISHED     InHost
TCP    10.82.0.11:50316       autocache:8080         ESTABLISHED     InHost
TCP    127.0.0.1:49155        2OPSLW7N048:49156      ESTABLISHED     InHost
TCP    127.0.0.1:49156        2OPSLW7N048:49155      ESTABLISHED     InHost
What is next? Running out of idea. Please advice. Thanks.
Kelvin Teang

Greetings!
Firstly you should find out where these requests come from, so please enable auditing in Computer Configuration\Windows Settings\Security Settings\Local Policies\Audit Policy\Audit account management in group Policy and after next lockout,
check for event ID 4740 in you Event Viewer and Security section.
After that you need to find out what are the reasons behind this. Common problems are:
Entering your password incorrectly. (Note: not only for interactive logons but also when you are accessing a share)
Some services are configured incorrectly with the wrong credential, to put it another way they (The Services) try to start themselves with incorrectly configured credentials.
Map Network Drives. It sounds a bit weird but YES! If you have a mapped network drive on your PC you may have to take a look at the credentials again to make sure they are correctly configured.
In windows 7 and above there is a feature called “Credential Manager” which holds all the credentials required for accessing a share, mapped network drive and so on. It is another location which you have to verify the credentials.
Conficker Worm.
Regards.
Mahdi Tehrani |
|
www.mahditehrani.ir
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Hi folks,
Ill dive straight in with this one as Ive been working on it since 9am today, with little progress.
I have USER A who's account locks out without them even being logged into their machine. The user changed their password yesterday as per company policy and since then it keeps locking out after 3-5 minutes.
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Pro 64 Bit
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{54849625-5478-4994-A5BA-3E3B0328C30D}
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Version 0
Level 0
Task 14336
Opcode 0
Keywords
0x8010000000000000
- TimeCreated
[ SystemTime]
2014-01-14T12:43:53.301501000Z
EventRecordID 2042599718
Correlation
- Execution
[ ProcessID] 516
[ ThreadID]
29720
Channel Security
Computer XXXXXXDC02.XXXXXXXXXXXXXX.co.uk
Security
- EventData
PackageName
MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
TargetUserName USER A
Workstation
XXXXXXXX
Status 0xc0000234
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The facts:
I have been having this problem for the past four+ months.
My work email address is my iTunes account name
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Windows 7 account lock outs Event ID: 4776 Authentic Package: MICROSOFT_AUTHENTICATION_pACKAGE_V1_0

Hello, hope someone can help, users are getting intermittently locked out by domain controllers which are Windows 2008 R2
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provider their domain log on credentials.
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Log Name: Security
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Event ID: 4776
Task Category: Credential Validation
Keywords: Audit Failure
Authentic Package: MICROSOFT_AUTHENTICATION_pACKAGE_V1_0
Logon Account: user's network log on account
Source Workstation: Users Windows 7 Desktop
Error Code: 0xc000006a
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Hi,
This type issue occurs should be more related to domain controller settings.
I find a similar case from the third party website. For your reference:
http://eventid.net/display-eventid-4776-source-Microsoft-Windows-Security-Auditing-eventno-10736-phase-1.htm
If the issue persists after performing the steps above, I recommend you posting your problem on
Server Forum.
Kim Zhou
TechNet Community Support

Domain accounts locked out regularly

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