[Samba] Setting Win ACLs via Comp Managment, connection to Member Server warning

[Lin Pro]

On the DC though I get this:
root at dc1:~# getent group Domain\ Admins
SAMDOM\domain admins:x:3000008:

On the Member Server
root at ubuntu-dm1:~# getent group Domain\ Admins
domain admins:x:10004:


how come? isn't it AD where everything should propagate and be uniform?

Where should I look for solution to that?
Lin