MSExchange ActiveSync 1034

This article provides an explanation and possible resolutions for a specific Exchange event. If you don't find what you’re looking for here, try searching Exchange 2010 Help.

Details

Explanation

This Warning event is logged if the Client Access server that issued a proxy request to another Client Access server times out while it waits for a response from the other Client Access server. Proxy requests occur when users use a Client Access server that is not in the same site as their mailbox. In this situation, the request is proxied to a Client Access server that is in the same site as the mailbox. This event may occur if one of the following conditions is true:

• The Client Access server that receives the proxy request is under a heavy load.

• The Client Access server that receives the proxy request is not operating correctly.

User Action

To resolve this warning, consider the following:

• If this event is infrequently logged, no user action is required.

• If this event is frequently logged, do one or more of the following:

  • Consider whether you can decrease the load on the mailbox server specified in the event description.

  • Review the Application log of the Client Access server that receives the proxy request for other events that could indicate the root cause of performance problems on that server.

  • Check network connectivity between the Client Access servers. Use the Ping or PathPing command-line tools to test basic connectivity. Use Ping to isolate network hardware problems and incompatible configurations. Use PathPing to detect packet loss over multiple-hop trips. For more information, see Microsoft Knowledge Base article 325487, Advanced network adapter troubleshooting for Windows workstations.

For More Information

If you are not already doing so, consider running the Exchange tools, which have been 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 and improve mail flow. 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.