I can't log in because of fake failed sign-in attempts

[Windows Server]

I can't log in to my computer. When I put in my Pin it says I have to wait two hours to log in due to failed sign-in attempts. However I have only tried to log in once. Once I have waited two hours and I can log in, the computer shuts down and I have the same problem and have wait another two hours to log in again. Can you help me fix this please?

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