Problem connecting domain directory with global group

[ASHER]

I have a legal problem on a directory. I created a global group named GG_XP in my area. Inside I added the computer named XP1. I applied this global group to a directory named "Only_my_XP" on my DC1. It is attached to a xcacls of directory "Only_my_XP".
BUILTINAdministrators (OI) (CI) F
DEMOGG_XP (OI) (CI) C
AUTHORITY NTSYSTEM (OI) (CI) F

It has attached description of the global group
net group GG_XP /domain
Group Name GG_XP
Members -------------------------------------------------------
XP1$ XP2$ XP3$

But when I browse the directory "Only_my_XP" from the computer XP1 with a domain user account, I'm denied access.

I do not understand. The user of premium domain is on the right of the computer. But the domain user can not deny the level of security. Please note that I am using Windows Server 2003.

[Rajesh4mLA]

Your group allows computer accounts XP1$ XP2$ XP3$ that connects to the directory? You do not use the computer account but your account area and you'll never have impersonalisation of a computer account. Viewing the effective permissions for your user on the rep.

[ASHER]

My user has no right to the directory (I have given above a cacls rights), but the computer via a global group. So if I understand correctly, a computer has no interest in the directories or I'm wrong.

The problem is that I saw someone created GPO to the domain level and not filtered through a WMI but with a global group in which he entered machines ..
Only one problem is access denied to directory GUID.

[Rajesh4mLA]

If a computer can have rights to a rep but must use the account to connect to it (typically when using software running on this account there) but you're logged in with your user and you accede to your rep with account, not the machine account.

On the GPO so it has nothing to do with directory. You can filter the GPO with groups to prevent security they apply to certain machines, but it's different.