Isolate Domain, Account Lockout, including non-existent accounts

Account lockouts every second. The audit logs of my domain controller are filled with audit failure of 6 accounts where 5 accounts are non-existent and 1, mine, exists disabling my access across the domain. This is unfamiliar territory for me and I need assistance with finding and stopping the cause of the these access failures.
Mark OwensAsked:
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Mark OwensAuthor Commented:
The problem turned out to be that a recent edit to the firewall had left a rule open allowing 'any' traffic inbound.
Naveen SharmaCommented:
Here is another informative article, which will go through some of the root causes of the account lockouts and the way to simplify the troubleshooting process:
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