I have seen a few post lately where users have reported that the "Association" for a Z-wave device have disappeared. I wanted to add a recent experience I had when I lost the Associations, with HS, for all my powered devices.

I believe the cause was simply renaming the Configuration file name (XXXXxxx.hsd) on the Setting/General page. A few hours later I noticed devices were not updating and I look at the Device Associations page and ALL my powered devices indicated that there was "No Association" for that device. Pressing the "update" button, on each device, brought the Association with HS back correctly. Interestingly the battery devices were not effected. Can anyone explain the phenomenon? Are Associations kept in a separate file?