|Message:||The Hub Transport server could not acquire a lock on Edge Transport server: %1. A lock is required to ensure that configuration data is properly replicated to an Active Directory Application Mode (ADAM) instance on Edge Transport servers. No user action is required. If this event occurs frequently, review the Application log for related Microsoft Exchange EdgeSync events that may provide information about the root cause of this failure.|
This Warning event indicates that the computer that is running the Hub Transport server role was unable to acquire a lock on the computer that is running the Edge Transport server role. The Edge Transport server is specified in the event description. A lock is required to ensure that configuration data is properly replicated to an Active Directory Application Mode (ADAM) instance on Edge Transport servers. ADAM can only be replicated with configuration data from one Hub Transport server at a time. This event is typically preceded by event 1005 from event source MSExchange EdgeSync.
No user action is required unless the event frequently occurs. If this event frequently occurs, it may indicate a connectivity problem between the Hub and Edge Transport servers. To resolve this problem, do the following:
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.