• Article

The configuration domain controller specified in a call to SetConfigDCName is unreachable

 

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

2101

Event Source

MSExchange ADAccess

Alert Type

Warning

MOM Rule Path

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

MOM Rule Name

The configuration domain controller specified in a call to SetConfigDCName is unreachable. DSAccess will select the configuration domain controller from available domain controllers.

Explanation

This Warning event indicates that the configuration domain controller that is mentioned is not running or not reachable. If other Exchange services, such as mail submission, transport, and replication start without errors, this warning can be safely ignored. However, if other Exchange services cannot start, see User Action.

User Action

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

  • Make sure that the domain controller specified in the event description is correctly registered on the DNS server. For more information, see Microsoft Knowledge Base article 247811, How Domain Controllers Are Located in Windows.

  • If DNS suffixes are specified on Advanced TCP/IP Settings, make sure that FQDN of the domain that contains the DNS server is listed first. To verify this, do the following:

    1. In Control Panel, double-click Network Connections.

    2. Right-click Local Area Connection, and then click Properties.

    3. Double-click Internet Protocol (TCP/IP).

    4. Click Advanced.

    5. In the Advanced TCP/IP settings dialog box, click the DNS tab. If there are any entries under Append these DNS suffixes (in order), make sure that FQDN of the domain that contains the DNS server is listed first.

  • If you are using a BIND DNS, try using a Microsoft Windows AD DNS.

  • Make sure that the Exchange Servers and Exchange Enterprise Servers group are added to Manage auditing and security log under User Rights Assignments on Domain Controller Security Settings. To verify this, do the following:

    1. Open the Default Domain Controllers Security Settings snap-in on the domain controller specified in the event description.

    2. In the console tree, under Security Settings, expand Local Policies and then click User Rights Assignments.

    3. In the results pane, double-click Manage auditing and security log. Verify that both the Exchange Servers group and the Exchange Enterprise Servers group are listed.

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.