KB ID 0001568 Problem Today I found I could no longer log in to the VCSA vCenter appliance; Exception in invoking authentication handler User password expired Solution Just because I can’t log into the web console, I could still log into the the appliance via SSH. Then invoke the shell command, and reset the root password with the passwd command; Now if you wish, you can Disable VCSA Password Expiration: Administration > Edit > No > Save. Related Articles, References, Credits, or External Links NA