• Article

Proxy encountered an error while receiving a packet

 

Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Operations Manager monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.

To learn more about this event, do one or more of the following:

  • Review the description of the event that includes the variables specific to your environment. From the Operator Console, select this alert, and then click the Properties tab.

  • Review all events that have been logged that meet the criteria of this Operations Manager alert. From the Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description.

Details

Product Name

Exchange

Product Version

8.0 (Exchange Server 2007)

Event ID

9040

Event Source

MSExchangeSA

Alert Type

Warning

MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Mailbox/System Attendant

MOM Rule Name

Proxy encountered an error while receiving a packet. The target domain controller, the network, or a client might be down. The Winsock subsystem returned an error. The circuit that received this error is being closed.

Explanation

This Warning event indicates that the Name Service Provider Interface (NSPI) of the Exchange server encountered a problem when communicating with a global catalog server. This problem may be a transient one. However, if this event is logged repeatedly, further investigation is needed. The 0x2746 error (mentioned in event 9040) translates to the WinSock error WSAECONNRESET. This connection reset can happen because of network related problems. This is a rare occurrence and usually a second connection attempt will succeed.

User Action

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

  • Check if a firewall or other device exists between the Exchange server and the global catalog with which it is communicating.

  • Check network related factors in your environment.

  • Check the cabling on the network card of the Exchange server.

If this warning event continues to occur, do one or more of the following:

  • Review the Application log for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this warning.

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

For more information about global catalog servers and domain controllers, refer to Microsoft Windows documentation.

For More Information

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.

To review Exchange 2007 event message articles that may not be represented by Exchange 2007 alerts, see the Events and Errors Message Center.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.