I read several people have added a Aeon DSD37-ZWUS.  I'm trying to add it to my isy 994i with Zwave but can't get it to add or exclude.  No communication at all.  The repeater is only about 8' from the ISY.  There is a LED on it that blinks all the time.  I have tried pushing the button on the side down to pair without any success.   Any suggestions?  Luckily my Kwikset Door Lock works without the repeater but since I bought it I would like it to work.   I also have a First Alert combo smoke and co detector that disconnects.   I think if I could get the repeater working the Smoke Alarm may start cooperating.   So far I'm not super impressed with ZWave.  Insteon seems much more reliable but is missing some things that ZWave offers.    I'm running v 4.2.3 in the ISY.

The included instructions are incorrect. To include or exclude the repeater, double-tap the button.

I have also read where some folks had to double tap to add the repeater. The ones I have added easily with a single tap. Maybe different firmware versions?