i get the following messages in my event viewer daily when i start the system and sometimes system actually restarts.


event viewer application log following messages
Alert Manager Event Log Alert:

Alert Manager Service: Active Dir Republish Not Successful
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ntfrsperf
The RPC call failed in the Open function of the FileReplicaConn Object. The counter data for this object will not be available. The FileReplicaConn object contains the performance counters of the connections over which files are being replicated by the File Replication Service.

I presume that this machine is on a network with other servers? Is it configured to replicate to another server (i.e. copy files to it so that you have a backup server with the same stuff) ? Is that server switched on and running correctly?

Is the server that displays the error a Primary Domain Controller?