Warnings/Errors reported in NSX Manager regarding expired NSX user passwords. This can include Admin and Audit users.
VMware NSX-T
The default NSX-T password expiration interval is 90 days. After this period, the NSX-T passwords will expire on all NSX-T Manager Nodes and all NSX-T Edge Nodes. This can cause multiple issues but has been put in place due to security issues.
An admin user can reset an expired passwords for other local users in the NSX UI.
Look for the Notification message about the user password expiration and click on Change Password link.
The Admin can also use System > User Management > Local Users tab and clicking the 3 vertical dots menu next to the user "Reset Password" to reset the password.
This can also be done via CLI or API.
Resetting Expired Passwords
To avoid this, you can extend or remove the password expiration interval.
Modifying the Default Admin Password Expiration