Event ID - 907

Event Id907
SourceMSExchangeActiveSyncNotify
DescriptionFailed to initialize directory access.The error code is in the data portion of this event.
Event InformationAccording to Microsoft:
Cause:

Failed to initialize directory access. The error code is in the data portion of this event. When the Routing Engine service tries to start, it must contact Active Directory. This error indicates that it was unable to do so.
User Action:
Examine the specific error code. Check for additional errors being logged by DSAccess and the System Attendant (MSExchangeSA).
Often, this error is occurring due to Domain Name System issues. It may be beneficial to run the tools netdiag and dcdiag.
Reference LinksFailed to initialize directory access

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