Error: You did not authenticate correctly. Please try again or contact you system administrator... when opening the License Management Console

Symptoms:

When attempting to open the License Management Console (LMC) users receive the following error message:
“You did not authenticate correctly. Please try again or contact you system administrator.”

Resolution : 

Users attempted to log in to the LMC with the wrong credentials. Check the tomcat-users.xml file located in:  Program Files\Citrix\Licensing\LMC\Tomcat\conf  and make an entry of your user credentials.