Direct Push has detected that the configuration value for the minimum heartbeat interval is set to a value higher than the maximum heartbeat interval. Therefore, the default minimum heartbeat interval of “%1” seconds and the default maximum heartbeat interval of “%2” seconds will be used until the next time that the computer is restarted. To avoid seeing this message in the future, use Internet Information Services (IIS) Manager to correct these values. Reset the values to the default, or use other acceptable values.

Details
Product: Exchange
Event ID: 1009
Source: MSExchange ActiveSync
Version: 8.0
Symbolic Name: InvalidHbiLimits
Message: Direct Push has detected that the configuration value for the minimum heartbeat interval is set to a value higher than the maximum heartbeat interval. Therefore, the default minimum heartbeat interval of “%1” seconds and the default maximum heartbeat interval of “%2” seconds will be used until the next time that the computer is restarted. To avoid seeing this message in the future, use Internet Information Services (IIS) Manager to correct these values. Reset the values to the default, or use other acceptable values.
   
Explanation

This Warning event indicates that Exchange Direct Push has detected that the configuration value for the minimum heartbeat interval is set to a value higher than the maximum heartbeat interval. This can only be caused if these settings were manually changed. This configuration is not valid. Exchange ActiveSync reverted to the default values for minimum heartbeat interval and maximum heartbeat interval. The default minimum heartbeat interval is 60 seconds (1 minute). The default maximum heartbeat interval is 3,540 seconds (59 minutes). Exchange ActiveSync will use the default settings until the next time that the server that is running Microsoft® Exchange Server is restarted.

We recommend that you only change these values if that has been recommended by Microsoft Product Support Services.

   
User Action

To resolve this warning, manually change the settings to the default settings or other acceptable values:

  1. Start Internet Information Services (IIS) Manager.

  2. In the console tree, click Web Sites, and then click Default Web Site.

  3. Right-click Microsoft-Server-ActiveSync, and then click Properties.

  4. On the ASP.NET tab, click Edit Configuration.

  5. On the General tab, under Application settings, take one of these steps:

    • Configure the MinHeartbeatInterval and MaxHeartbeatInterval settings to match the default values.

    • Configure values that are not default. When you use values that are not default, you must configure the MinHeartbeatInterval to a value lower than the MaxHeartbeatInterval. You must also configure values in the acceptable range. The acceptable range of values for the MinHeartbeatInterval is 1 to 3,540. The acceptable range of values for the MaxHeartbeatInterval is 2 to 3,540.

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.

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