MSExchange ADAccess 2601

  • Article

 

This article provides an explanation and possible resolutions for a specific Exchange event. If you don't find what you’re looking for here, try searching Exchange 2010 Help.

Details

Product Name

Exchange

Product Version

14.0

Event ID

2601

Category

General

Symbolic Name

ADTOPO_RPC_RESOLVE_SID_FAILED

Message Text

Process %1 (PID=%2). When initializing a remote procedure call (RPC) to the Microsoft Exchange Active Directory Topology service, Exchange could not retrieve the SID for account %3 - Error code=%4. %n The Microsoft Exchange Active Directory Topology service will continue starting with limited permissions.

Explanation

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

This event may be caused by the following conditions:

  • Domain controller configuration issues

  • Network connectivity problems

  • Permissions problems

User Action

If this event occurs together with MSExchange ADAccess events 2604 and 2501, see Microsoft Knowledge Base article 2025528, MSExchange ADAccess Event ID's 2601, 2604, 2501.

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 MSExchange ADAccess events and other events may help determine the root cause of this warning. Increase diagnostic logging for the MSExchange ADAccess\Topology category to Lowest or higher. For detailed information about how to increase logging, see Manage Diagnostic Logging Levels.

  • 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, Advanced network adapter troubleshooting for Windows workstations.

For more information about the Get-EventLogLevel and Set-EventLogLevel diagnostic logging cmdlets, see the following topics:

For More Information

If you are not already doing so, consider running the Exchange tools, which have been created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues and improve mail flow. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.