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I am getting the event below in the Eventlog regarding Direct Push for Activesync. If it matters we have a Cisco ASA and a Citrix Netscaler.

Event 1040 MSExchange Activesync

The average of the most recent heartbeat intervals [504] 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).

Question

Now you know the context, is there any way I can use Telnet to verify that the session is open for 30 minutes?

What should the telnet client connect to? Is a telnet to Port 80 sufficient?

Should I set up a dedicated TCP inbound host just for testing?

makerofthings7
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  • You've adjusted the heartbeat settings and your firewall/netscaler timeouts to 30 minutes and are just wanting to verify that the message will go away? – TheCleaner Sep 10 '13 at 15:56
  • I want to verify the functionality of the TCP session staying open. I want direct push to work, and also want the messages to go away. So far NetOps has said everything is right on their end, but if I come up with a way of testing each device (Server, load balancer, firewall) I can figure out what is closing the connection. Who knows maybe there is some proxy I'm unaware of – makerofthings7 Sep 10 '13 at 16:31

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