What information could be useful to understand and find out what is locking up any account?
ITMS 8.x
The following information is provided as reference only. Troubleshooting issues with accounts locking up is usually done by the Network Administrator or Administrator for the system. Even though the issue can be related to an Altiris account, defining where or what is causing it based on their processes and recent changes can be challenging.
Here are a few Microsoft as well other online articles that can provide some guidance for what to look for when experiencing this type of issue. Please refer to the following articles:
Microsoft articles:
http://technet.microsoft.com/en-us/library/cc773155(WS.10).aspx -- Troubleshooting Account Lockout
http://technet.microsoft.com/en-us/library/cc776964(WS.10).aspx -- Maintaining and Monitoring Account Lockout
https://www.microsoft.com/en-us/download/details.aspx?id=18465 -- Account Lockout and Management Tools
http://technet.microsoft.com/en-us/library/dd277403.aspx -- Configuring Audit Policies
Other Online articles:
http://windowsitpro.com/article/articleid/98031/tools-for-troubleshooting-locked-out-accounts.html -- Tools for Troubleshooting Locked-Out Accounts
http://windowsitpro.com/article/articleid/23378/access-denied--auditing-user-account-lockouts.html -- General article