I enter the correct credentials and returns an error

This situation happens when the screen saver is activated on the computer. 

It is common to press the space key to exit the screen saver and to log on to the computer by entering the user credentials.
To do this is to insert an extra white space that causes the credentials are not correct.

Sometimes, A user removes the PC from its state of inactivity for us by adding this white space in these fields where we enter our credentials.

Before you enter the credentials, make sure that there is a blank space inserted in those fields.

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