Yes - look for any mobile devices and try to track down where the lockout is 
coming from and trace it back to the source.  I had one last year like this - 
user was locking out randomly all the time.  It turned out that they had an 
iPad in their car and when it was close enough to connect to the wireless 
network it connected and was using old credentials on one of the domain 
accounts, locking it out.



________________________________
 From: Paul Hutchings <[email protected]>
To: NT System Admin Issues <[email protected]> 
Sent: Friday, February 3, 2012 9:29 AM
Subject: RE: One account keeps locking out
 

 
Mobile device(s), cached credentials (check Windows Credential Manager), logged 
onto another workstation using previous password?


From:Sean Rector [mailto:[email protected]] 
Sent: 03 February 2012 15:16
To: NT System Admin Issues
Subject: One account keeps locking out
 
I’ve got one user whose account keeps locking out from the moment she logs on 
to the end of the day.  I can’t find what on her machine is causing this – I’m 
thinking along the lines of an out of date password in Dropbox’s Proxy 
settings.  What app should I run to get a good bit of info on what could be 
causing this?
 
Windows 7 Professional
Server 2008 AD
Exchange 2003
Outlook 2010
 
LMK if you need further details.
 
Sean Rector, MCSE
 
Information Technology Manager
Virginia Opera Association
E-Mail:          [email protected]
Phone:        (757) 213-4548 (direct line)
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