Topic Last Modified: 2010-05-03

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


Alert Type


Rule Path

Microsoft Exchange Server/Exchange 2010/Mailbox/System Attendant

Rule Name

Name Service Provider Interface (NSPI) Proxy failed to connect to the global catalog.


This Warning event indicates that the Exchange server was unable to contact a global catalog server. If there is another global catalog server in the site, Exchange will use that server. The global catalog server could be unreachable due to network connectivity issues.  

User Action

To resolve this warning, do one or more of the following:

  • Make sure that the global catalog server is running and can be reached.

  • If you have recently promoted a domain controller to be a global catalog server, restart that global catalog server. You need to restart this server for those changes to take place.

  • If you are having difficulty resolving the issue, contact Microsoft Product Support. For information about contacting support, visit the Contact Us page of the Microsoft Help and Support Web site.

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.