Confused about polling interval

[Unitware]

I have been studying the power consumption of a prototype and observe that the end device is polling very frequently.

The data request polling is backing off for a while to about every 3 seconds, but suddenly (efter 15 seconds or so) the device starts polling every 200 ms or so. 

If I disable the turbo polling mode then the polling will be every 500ms from start.

I'm wondering if you can help me put with some pointers to there I should start looking. 
My goal is to poll once every ten seconds or so, and maybe a increased polling rate after any device activity to fetch pending commands.  

My project is based on the multiprotocol doorlock example in sdk 4.0.0 and I am using SDK 16.0 to fill in the gaps to make it compile. Changes that I have meade includes moving the application out of the sdk-directory structure and I am using make and gcc to build it.

A log from wireshark: 

Power measurement:

[Unitware]

Hi, the missing ```ZB_ERROR_CHECK(zigbee_default_signal_handler(bufid));```in the zboss_signal_handler demo code from 4.0.0 was causing this and some other errors. I'll have a look at the diff and see if I can clean up some more. Thanks for your help!