• Article

All Domain Controller servers are not responding

 

Topic Last Modified: 2006-12-18

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

2102

Event Source

MSExchange ADAccess

Alert Type

Error

MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Common Components/Active Directory Access

MOM Rule Name

All domain controller servers are not responding. This can cause mail flow to stop. Investigate network issues and review the Application log for related events.

Explanation

This Error event indicates that all domain controllers in the Active Directory topology are not working or not reachable. This event may occur under following conditions:

  • If network issues have rendered all domain controllers as unreachable.

  • If all domain controllers in the Active Directory topology are not working.

  • If Manage Auditing and Security Log right (SeSecurityPrivilege) was removed for Exchange Enterprise Servers or Exchange Servers security groups on some or all of the domain controllers.

User Action

To resolve this error, perform the following steps:

  • Review MSExchangeADAccess Event 2150 for a list of domain controllers, global catalog servers and configuration domain controllers available in the Active Directory topology. Use the Ping or PathPing command-line tools to test basic connectivity to these Active Directory servers. 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, How to troubleshoot network connectivity problems.

  • Run the Dcdiag command line tool to test domain controller health. To do this, run dcdiag /s:<Domain Controller Name> from a command prompt on the Exchange Server. Use the output of Dcdiag to discover the root cause of any failures or warnings that it reports. For more information, see Dcdiag Overview at the Microsoft Windows Server TechCenter.

  • Make sure Exchange Enterprise Servers and Exchange Servers security groups are added to Manage Auditing and Security Log under Default Domain Controller Security Settings. To do this, follow the steps given below:

    1. In the Default Domain Controller Security Settings snap-in, under Security Settings, expand Local Policies and select User Rights Assignment.

    2. In the right pane, right-click Manage Auditing and Security Log and then click Properties.

    3. Make sure Define these policy settings checkbox is checked and Exchange Enterprise Servers and Exchange Servers are listed in the list underneath.

  • Review other related Error and Warning events in the Application log. These related events may help you find the root cause of this error.

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.