FAQ: Zwave Association between 2 devices

i need help associating 2 devices
i want the s2 from aeotec dual switch to turn on/off the switch from an aeotec nano switch
http://manuals-backend.z-wave.info/make.php?lang=en&sku=AEOEZW140
that is the manual of dual switch
after tweaking with z wave teaker i can see in ide the fallowing
|zwtAssocGroupCc||0|
|zwtAssocGroupId||4|
|zwtAssocGroupMembers||39|
39 is the id of the nano switch that i want to control
nothing happens when i switch s2 on
what i am missing here/