While logging to vCenter VAMI portal (VMware vCenter Server Management Port 5480), I was receiving below error message with my root login.
Exception in invoking authentication handler User password expired.
This issue is due to the root password for VAMI portal is expired. Although you can still login through SSH. Check Enable or disable SSH on VMWare vCenter Server Appliance (VCSA) and Enable Access to the VCSA Bash shell or Appliance Shell.
Login through SSH tool, Go to the shell and type passwd to reset root password. Type password twice to confirm.
Once password is reset try again on vCenter Server Management Interface (VAMI portal), go to the Administration, click EDIT button on Password Expiration settings, here you can either increase Password expires to No or increase Password validity (days) and save the settings.
Note, Password expires to No is not recommended.
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