Weblogic Sever : Authentication denied: Boot identity not valid; The user name and/or password from the boot identity file (boot.properties) is not valid.

This morning when i wanted to start my OBIEE services to verify a issue i was facing at my work. I haven't started my services for sometime now and when i started the Admin Server (Weblogic Server ) the same way i usually do,  i suddenly saw a message saying as below.

 
 


I had absolutely no clue what might have gone wrong as generally Admin server we do not see much issues when its OBIEE installation.As usual i went to the log files AdminServer.log, Adminserver-diagnostic.log  from below location

\user_projects\domains\bifoundation_domain\servers\AdminServer\logs

I found the below error at the end of the time around the time i started the Admin Server.

 

It is clear it has issues with boot.properties file so instead of debugging what happened i just went to the file location as below and entered the values of username and password again.


\user_projects\domains\bifoundation_domain\servers\AdminServer\security\

username=weblogic
password=Admin123

And restarted the service which cleared the issue for me.