Event ID - 1009

Event Id1009
SourceMSExchange ActiveSync
DescriptionDirect 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.
Event InformationAccording to Microsoft :
Cause :
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.
Resolution :
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:
a)Configure theMinHeartbeatInterval andMaxHeartbeatInterval settings to match the default values.
b)Configure values that are not default. When you use values that are not default, you must configure theMinHeartbeatInterval 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.
Reference LinksEvent ID 1009 from Source MSExchange ActiveSync

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.