Hello Alvaro Jiron,
Thank you for posting in Microsoft Community forum.
1.Based on "but after the computer went to sleep, it woke up requesting a password to enter the user", can you see the account before you type the password?
2.Before the computer went to sleep, what account and password did you use to sign in Windows? You can try that account and password.
3.Your machine is in organization network domain. You can sign in the problematic machine using domain Administrator and check what account has been signed in this machine.
Then you can check what account and its password.
I hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou