MSExchange ADAccess 2070

上一次修改主题： 2011-03-19

Thank you for clicking the link that brought you to this page. We do not currently have an article to resolve this specific issue. Your attempt to get to this event article helps us prioritize the event articles for which we will be providing detailed explanations and user actions.

Although there is as yet no supplementary content specifically written to help resolve this Exchange 2010 event, here are some recommended next steps to learn more about this alert:

• Review the Application log and System log on your Exchange 2010 servers for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this error.

• Research your issue by using self-support options. From the navigation pane of the Exchange Server Solutions Center page, click Self Support Options to use the following and other self-help options:

  • Search the Microsoft Knowledge Base. For example, search the Knowledge Base for the Event Source and event ID you are getting, as well as any other key words in the text of the event message.

  • Search the Exchange 2010 Forum. You can also post a question there.

  • Search the Exchange Server Community Web site.

• Research your issue by using other resources. From the navigation pane at the Exchange Server Solutions Center page, click Key Resources to learn about other resources.

• Resolve your issue by using assisted support options. From the Exchange Server Solutions Center page, click Assisted Support Options to contact a Microsoft support professional. Because your organization may have a specific procedure for directly contacting Microsoft Technical Support, be sure to reviewing your organization's guidelines first. If you do contact support, have the event ID information available. Also, if possible, be prepared to send your application and system logs to the support professional.

Details

Explanation

This Information event indicates that the Active Directory Provider component on the server that is running Microsoft Exchange lost contact with the domain controller that is specified in the "Description" section of the event. The error code will be in the format 0x800409ZZ, where ZZ is the hexadecimal value of a standard LDAP error. For more information about LDAP error codes, see Microsoft Knowledge Base article 218185, Microsoft LDAP Error Codes.

This event is logged when the logging for MSExchangeADAccess\Topology is set to Minimum or higher. This event may be logged when the following conditions are true:

• The domain controller is either down or unreachable.

• DNS is not configured correctly.

User Action

Typically, no action is required. If this event is logged during planned downtime, you can safely ignore this event as long as there is ample capacity in other domain controllers and in the global catalog servers. If this event is not logged during planned downtime, DSAccess tries to reuse the affected domain controller automatically after some time, and then reconnects when the domain controller is reachable.

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

• Check DNS to make sure that no records exist for global catalogs that are no longer available.

• 使用 Ping 或 PathPing 命令行工具测试基本连接。使用 Ping 可隔离网络硬件问题和不兼容配置。使用 PathPing 可检测多重跳跃行程中的数据包丢失。有关详细信息，请参阅 Microsoft 知识库文章 325487：Windows 工作站的高级网络适配器疑难解答。

Note   如果您尚未执行此操作，请考虑运行 Exchange 工具，已创建这些工具以帮助您分析 Exchange 环境并对其进行疑难解答。这些工具可帮助确保您的配置与 Microsoft 最佳实践保持一致。它们还可以帮助您识别和解决性能问题，并改进邮件流。若要运行这些工具，请转到 Exchange 管理控制台的“工具箱”节点。若要了解有关这些工具的详细信息，请参阅管理工具箱中的工具。