I want to Find Computer Name User is Logged Onto and locked out there

I want to Find Computer Name User is Logged Onto and locked out there

Actually some users complaining that their users ID always get locked out due to our police of three times incorrect password the user will locked out, but the user does not know on which computer someone is trying to logon by his user , so please can you assist me how to get the computers names on which the users is failed to logon and caused it to lock out. 

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