WinBox 5.8 NTP problem

Hi!
I hope i can get some help.
I’ve got about 10 rb750 routers and now i’m trying to set up the ntp client on them.
On WinBox 5.2 and 5.6 there is no trouble, everything works fine.
But on 5.8 i can’t get it work. It gets wrong time.
The ntp server is a Domain controller with the 10.0.0.1 IP address and the DC-s ntp server is hu.pool.ntp.org.
I’ve tried to set dc’s ip or the public ntp servers ip but it doesn’t work.
Any idea?
Thanks!
Daniel