The execution of the login scripts and GPO's fail when the workstation connects to an additional domain controller during the login process. For more information, see TID 7009466.
If a user with a Universal password policy is moved from non-domain partition to a DSfW partition, the user will not be able to login into the DSfW domain.
To resolve this issue, delete the old password policy using iManager. After this step is done, the user will be able to login to the workstation.
If a member of the GroupPolicy Creator Owner group tries editing the group policy through the Group Policy Management Console(GPMC), and if the GPMC is referring the ADC, the user will not be permitted to change the DFS referral to make it point to the first domain controller. To make changes, you will require administrator privileges
You might get 'access denied' warnings while backing up Group Policies in XP and Vista clients connected to DSfW. It is safe to ignore them.
WMI filters are not supported in this release.