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Exchange 2010 error ID 1040 The average of the most recent heartbeat intervals  ...

F_A_H_D
F_A_H_D asked
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Last Modified: 2012-08-15
My Exchange getting the below error
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The average of the most recent heartbeat intervals [494] for request [Sync] used by clients is less than or equal to [540].
Make sure that your firewall configuration is set to work correctly with Exchange ActiveSync and direct push technology. Specifically, make sure that your firewall is configured so that requests to Exchange ActiveSync do not expire before they have the opportunity to be processed.

For more information about how to configure firewall settings when using Exchange ActiveSync, see Microsoft Knowledge Base article 905013, "Enterprise Firewall Configuration for Exchange ActiveSync Direct Push Technology" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=905013).
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so what you think about this issue

exchange 2010 on win server 2008 and i have alot of mail boxes are using ActiveSync
and it works with no problem so why this error appears!! and what the solution
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