An RPC request to the Microsoft Exchange Active Directory Topology service failed
Topic Last Modified: 2007-11-16
The Microsoft Exchange Server 2007 Management Pack for Microsoft Operations Manager (MOM) 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 MOM Operator Console, select this alert, and then click the Properties tab.
Review all events that have been logged that meet the criteria of this MOM alert. From the MOM 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 |
2152 |
Event Source |
MSExchange ADAccess |
Alert Type |
Critical Error |
MOM Rule Path |
Microsoft Exchange Server/Exchange 2007/Common Components/Active Directory Access |
MOM Rule Name |
An RPC request to the Microsoft Exchange Active Directory Topology service failed. |
Explanation
This Error event indicates that a remote procedure call (RPC) to the Microsoft® Exchange Active Directory® Topology service failed. RPC is an interprocess communication (IPC) mechanism that enables seamless communication between client and server applications. In an Exchange environment, the Exchange server that is running on a member server acts as a client to the Active Directory information that resides on a domain controller. This event may occur if the RPC service is stopped or disabled. This event may also occur if the ports that are used by the RPC service are blocked by a firewall.
For more information about RPC and how it works, see What is RPC? and How RPC Works at the Microsoft Windows Server TechCenter.
User Action
To resolve this error, do one or more of the following:
Make sure that the Status of the RPC service is Started.
If the Status of the service is Started, stop and then start the service.
If the Status of the service is not set to Started, start the service.
Make sure that the network ports that are used by RPC are not blocked by a firewall. For more information, see How RPC Works at the Microsoft Windows Server TechCenter.
Note
RPC generally uses port 135.
Make sure that the Exchange server that logged this event is configured to point to a valid DNS server. For more information about how to troubleshoot DNS issues, see DNS Troubleshooting.
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 MOM 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.