Error 319 on System Center Data Protection Manager 2012

Hi guys! I have a problem with System Center Data Protection Manager 2012 (DPM). When pushing it to the target PC, it always failed with the error I posted below.
Install protection agent on name.domain.com failed:
Error 319: The agent operation failed because of a communication error with the DPM Agent Coordinator service on name.domain.com.
Error details: The RPC server is unavailable (0x800706BA)
The alert is showing an event log describing “Agent operation failed. (ID: 370) The agent operation failed because of a communication error with the DPM Agent Coordinator service on name.domain.com. (ID: 319).
Anyone have any idea on how to resolve this?
