In our Flexnet Manager 15.2 environment, I've configured an alert that sends an e-mail whern one of the agents of out license servers are down.

For some reasen, I'm receiving this emails now every morning and in the afternoon for approximately half an hour.

However, when I look into my Flexnet Manager, I see the agent that's supposed to be down is unknown or up.

When I take a look into the Agent Log, I see the following messages at the time, the agent is supposed to be down:
2012-10-02 07:52:57,894 DEBUG [flexnet.agent] [Timer-2] Attempting to send usage data to Admin server
2012-10-02 07:52:57,972 DEBUG [flexnet.agent] [Timer-2] Successfully sent usage data to Admin server
2012-10-02 07:53:21,939 DEBUG [flexnet.agent] [Timer-0] dataReceiver = com.flexnet.manager.webservices.FNMDataReceiverSoapBindingStub@429636
2012-10-02 07:53:21,939 DEBUG [flexnet.agent] [Timer-0] attempting heartbeat
2012-10-02 07:53:21,939 DEBUG [flexnet.agent] [Timer-0] calling serverUpdateIntervals
2012-10-02 07:53:21,955 DEBUG [flexnet.agent] [Timer-0] received


After about 30 minutes, the messages and e-mails stop.
  1. What's the reaseon I get the e-mails
  2. What's the meaning of this logging
  3. How can I fix my problem