Neo Coolcam Plug Z-Wave COMMAND_CLASS_SECURITY

Questions & Help
1

Hi, I have two brand new Neo Coolcam Z-Wave Plugs. I experience periodic “hangs” - they stop responding neither to command nor to physical button press. The only thing I can do is to disconnect them from electricity, and plug them in again.

I thought it’s some kind of hardware problem, however when I started looking at z-wave log (from http://developer.athom.com/tools/zwave), I noticed a lot (every couple of seconds) of COMMAND_CLASS_SECURITY commands - I’m not experienced with z-wave, I’m not sure wether it’s correct or not.

Log sample:
2019-12-09T22:59:55.137Z
Node[24]: [COMMAND_CLASS_SECURITY] {}
2019-12-09T22:59:55.137Z
Node[24]: [COMMAND_CLASS_SECURITY] [SECURITY_NONCE_REPORT] {“type”:“Buffer”,“data”:[39,160,159,194,182,4,127,15]}
2019-12-09T22:59:55.137Z
Node[24]: sendData to COMMAND_CLASS_SECURITY, params 0x8027a09fc2b6047f0f
2019-12-09T23:00:05.168Z
Node[24]: Received application command for COMMAND_CLASS_SECURITY, data: 0x40
2019-12-09T23:00:05.169Z
Node[24]: [COMMAND_CLASS_SECURITY] {}
2019-12-09T23:00:05.169Z
Node[24]: [COMMAND_CLASS_SECURITY] [SECURITY_NONCE_REPORT] {“type”:“Buffer”,“data”:[40,148,133,23,28,36,120,224]}
2019-12-09T23:00:05.169Z
Node[24]: sendData to COMMAND_CLASS_SECURITY, params 0x80289485171c2478e0
2019-12-09T23:00:15.150Z
Node[24]: Received application command for COMMAND_CLASS_SECURITY, data: 0x40
2019-12-09T23:00:15.150Z
Node[24]: [COMMAND_CLASS_SECURITY] {}
2019-12-09T23:00:15.151Z
Node[24]: [COMMAND_CLASS_SECURITY] [SECURITY_NONCE_REPORT] {“type”:“Buffer”,“data”:[42,190,221,43,178,198,122,163]}
2019-12-09T23:00:15.151Z
Node[24]: sendData to COMMAND_CLASS_SECURITY, params 0x802abedd2bb2c67aa3

Can you tell if this behavior if correct? Can the plug be “flooded” with those commands?

2

The newer plugs have a known issue, partly because of the secure status. Read Neo coolcam powerplug and this Add Z-Wave device non-secure?.
There are a couple of more topics about it, you can use the search for that.

3

Just to close the topic: recent update to Neo Coolcam app made the plug work correctly. They wrote something about disabling secure connection in changelog, probably they addressed exactly mine issue.

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