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Author Topic: Intermittent issue with Duewi.me switches and associations/status push (solved)  (Read 2199 times)

Offline intveltr

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I'm using a few Duewi.me switches; these are the ones with the newer firmware and purportedly support status push (instant status updates to Vera) and group associations with other devices.  I use both features, having one Duewi switch trigger a scene in Vera using status push, and another switch associated to a second one so that turning on one light also turns on the other. 

This works as advertised... for about a day.  After a while, the switches no longer instantly push their status to Vera; the scene gets triggered only when Vera gets around to poll the status, or if I push the Duewi switch 3 times (which sends an instant status update to Vera). When I use the other Duewi switch, the second light switch associated with it no longer changes state either.  If I remove power from the Duewi switches for a moment using the circuit breaker, the status push and group association functions are restored again, at least for a while.

Has anyone seen similar behaviour, or better yet, have a fix?
« Last Edit: November 26, 2011, 01:11:06 pm by intveltr »
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Offline umtauscher

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Re: Intermittent issue with Duewi.me switches and associations/status push
« Reply #1 on: November 02, 2011, 10:36:06 am »
What are theese switches, I never heard of them, could you post a link?

On the other hand, this sounds like a problem in the firmware of the switches. what does düwi say about your problem? Unless powering off and on also sends an info frame like pushing 3 times I would say the switch itsself is the cause of the problem.
Just my 2 Ct.
Umtauscher

Offline intveltr

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Re: Intermittent issue with Duewi.me switches and associations/status push
« Reply #2 on: November 02, 2011, 02:34:25 pm »
Here's the manufacturer's site: http://www.duewi.de/index.php?productid=37240

I've been in touch with the supplier (via my Z-wave stockist); they seem committed to fixing this issue.  They have been able to reproduce the problem; at the moment it appears that this is indeed a firmware issue, caused by a buffer overflow that happens in larger Z-wave networks.  Hopefully there will be a fix forthcoming; my stockist should be able to update the firmware in my switches.
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Offline umtauscher

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Re: Intermittent issue with Duewi.me switches and associations/status push
« Reply #3 on: November 02, 2011, 03:13:39 pm »
hmm, I cannot find any new products on their website. Everything I see is there for years...

Offline intveltr

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Re: Intermittent issue with Duewi.me switches and associations/status push
« Reply #4 on: November 02, 2011, 04:19:37 pm »
Try these guys: http://en.z-wave.me/  It looks like they make the newer firmware for the Duewi switches.  I think these are the guys doing the debugging as well.
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Offline intveltr

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Re: Intermittent issue with Duewi.me switches and associations/status push
« Reply #5 on: November 26, 2011, 01:10:33 pm »
UPDATE: A few weeks ago my stockist sent me 3 Duewi switches with new firmware to test.  I have these things running in my network for 2 weeks, and so far both state push and associations work just fine.  According to the manufacturer, the problem occurred only in larger networks, and was caused by a buffer overflow in the Zensys SDK.
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