Monitors that SYSVOL is currently sharing on this domain controller.
If SYSVOL is not sharing, clients and services will not be able to obtain Group Policy information from this domain controller.
Ensure that the domain controller is fully synchronized. SYSVOL will not share until the domain controller has finished its initial synchronization post DC promotion.
Check the DFSR or NTFRS event logs to ensure the File Server services are working correctly.
Check the Application and System event logs to ensure that there are no systemic problems with the server.