• Article

A Lightweight Directory Access Protocol (LDAP) search call 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

2061

Event Source

MSExchange ADAccess

Alert Type

Warning

MOM Rule Path

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

MOM Rule Name

A Lightweight Directory Access Protocol (LDAP) search call failed. In absence of other events, you can ignore this event. Review the Application log for related events. Check network connectivity.

Explanation

This Warning event indicates that a Lightweight Directory Access Protocol (LDAP) search performed by Exchange component failed. In absence of other events, this event usually means that there is a problem with a particular user or operation. Mail flow should not be affected.

This warning may be caused by the following conditions:

  • Domain controller configuration issues.

  • Network connectivity problems.

  • Permissions problems.

User Action

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

  • If this event is rarely seen, it can safely be ignored.

  • If this Warning event is logged at specific times or if any other pattern is detected, do the following:

    • Check the Application log for related events. The detail in other MSExchangeADAccess events and other events may help determine the root cause of this warning. Increase diagnostic logging for the MSExchangeADAccess\Topology category to Minimum or higher.

    • To review the current MSExchangeADAccess service diagnostic logging settings, in the Exchange Management Shell, type Get-EventLogLevel MSExchangeADAccess.

    • To change the logging level for the Topology category, in the Exchange Management Shell, type Set-EventlogLevel MSExchangeADAccess\Topology -Level Minimum.

    • 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, How to troubleshoot network connectivity problems.

For more information about diagnostic logging commands, see Get-EventLogLevel and Set -EventLogLevel in the Exchange 2007 Help.

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.