Event ID - 1186

Event Id1186
DescriptionThe internal directory replication agent (DRA) Dispatcher thread is waiting in a remote procedure call (RPC) to directory <directory name>. The Site Replication service has attempted to cancel the call and recover the thread, with status 0x<value>. If this condition persists, stop and restart that Microsoft Exchange Server computer.
Event InformationThe directory replication agent (DRA) is responsible for synchronizing with the other directories and accepting directory updates. A remote procedure call (RPC) is the standard protocol for communication between Exchange servers and clients.

Check network connectivity. Verify that the RPC service is running. If the error persists, stop and restart all Exchange services. If the error still persists, stop and restart the Exchange server.
Reference LinksMicrosoft product: Exchange Version: 6.0 Event Source: MSExchangeSRS Event ID: 1186

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