[Samba] Samba4 Users can not change their password using ctrl + alt + del

[Nguyen Trung Hieu]

Dear Samba team

In my lab: Windows XP/7/8 joined Samba4.1 AD DC OK!

I don't change any password policy (all are default!)

But when users logged on sucessfully, they *pressed ctrl + alt + del* in
order to change their passwords (new password included over 8 characters,
complexity...), but they failed

I also read this link:

https://lists.samba.org/archive/samba/2010-September/158171.html

Could you please help me?

Thanks so much!