This is a newly-setup MS Windows 2012 R2 AD domain. The newly-setup DC is VMware 5.5 machine. The are a couples of VMs created. However, I found one thing quite strange. Whenever user ctrl-alt-delete in their workstation, and then choose option > password change, they failed have their password change. If changing password on the DC > ad users and computer MMC is working fine. Why? What should I do to make it work?