You may encounter a situation in which SYSVOL and Netlogon shares are not shared on a domain controller. The following additional symptoms or conditions may also apply:
- The SYSVOL folder is empty.
- The affected domain controller was recently promoted.
- The environment contains domain controllers running versions of Windows earlier than Windows Server 2012 R2.
- DFS Replication is used to replicate the SYSVOL Share replicated folder.
- An upstream domain controller's DFS Replication service is in an error state.
How to force an authoritative and non-authoritative synchronization for DFSR-replicated SYSVOL (like "D4/D2" for FRS)
You want to force the non-authoritative synchronization of SYSVOL on a domain controller. In the File Replication Service (FRS), this was controlled through the D2 and D4 data values for the Burflags registry values, but these values do not exist for the Distributed File System Replication (DFSR) service. You cannot use the DFS Management snap-in (Dfsmgmt.msc) or the Dfsradmin.exe command-line tool to achieve this. Unlike custom DFSR replicated folders, SYSVOL is intentionally protected from any editing through its management interfaces to prevent accidents.
https://support.microsoft.com/en-us/kb/2218556
