Arecently promoted employee at your company has called you because they attempted to log in to their computer several times with a password created after a password expiry notice, but the attempts made were unsuccessful. you have reset the user's account password, but the user is still unable to log in. what is most likely the cause of the failure?

The user's account is blocked due to several unsuccessful login attempts.

Explanation:

Any device having a password security has a property of blocking the account or device in use after noticing several unsuccessful attempts of login.

So as a precautionary measure when the software notices such activity it blocks the access to that account so that any intruder might not be able to enter the account premises.

Same is the case with the employee who was trying to access his own account but due the expired password he made several attempts but couldn't log in. The software took it as an intruder and blocked the account.

The employee after requesting for password reset again tried to login but the account was blocked so he could not be able to access it again.