Topic Last Modified: 2010-02-15

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.

To learn more about this alert, in Operations Manager, do one or more of the following:


Product Name


Product Version

14.0 (Exchange 2010)

Event ID


Event Source

MSExchange EdgeSync

Alert Type


Rule Path

Microsoft Exchange Server/Exchange 2010/Hub Transport/EdgeSync

Rule Name

Microsoft Exchange EdgeSync service failed to connect to the AD LDS instance on the Edge Transport server.


This Warning event indicates that an exception occurred when the computer that is running the Hub Transport server role tried to acquire a lock on the computer that is running the Edge Transport server role. A lock is required to make sure that configuration data is correctly replicated to an Active Directory Lightweight Directory Services (AD LDS) instance on Edge Transport servers. AD LDS data can only be updated with configuration data from one Hub Transport server at a time.

This event may be logged because a subscription on an Edge Transport server is expired or disabled. The exception specified in the event description provides more information about this failure.

User Action

To resolve this event, re-subscribe the Edge Transport server specified in the event description. For detailed instructions about resubscribing your Edge Transport server, see the following topics:

  • Import an Edge Subscription File to an Active Directory Site

  • Create an Edge Subscription File on an Edge Transport Server

For More Information

If you are not already doing so, consider running the Exchange tools created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.