Unable to remotely control S2 Z-Wave devices after IQ Panel update

Support
1

I let my IQ Panel run a firmware update to version 4.1.1 from 4.0.1. Since installing this update I am no longer able to remotely control any S2 Z-Wave devices. All of these devices were working perfectly before the update but now only my S0 device and any S2 capable device I re-add without S2 work. None of my Z-Wave devices are battery powered.

Using the panel or the Alarm.com app/website to toggle lights, lock/unlock doors, or adjust the thermostat temperature has no effect, even after 30+ minutes. In addition, the state of lights and locks are not updated on the panel or Alarm.com. Local changes to the thermostats do sometimes appear on the panel after a significant delay.

Physically operating all the devices still works fine along with previously existing Z-Wave associations but I am unable to make any changes to them.

I have tried the following actions with no success:

  • Power down the panel, unplug it, and remove the battery for 4 hours along with powering down the circuit breaker for the S2 devices.
  • Clear a device and re-add it.

I have also checked the following diagnostics on the panel:

  • Settings > Advanced Settings > System Tests > Daughter Cards Test > Z-Wave = Pass
  • Settings > Advanced Settings > System Tests > Z-Wave Tests > Rediscover Network = all nodes successfully rediscovered
  • Settings > Advanced Settings > System Tests > Z-Wave Tests > Counters = seems normal. Almost all “Acked commands no auto route” with 0 or single digit fail counts.
  • Settings > Advanced Settings > System Tests > Z-Wave Tests > Z-Wave Test = Pass for every device I run it on
  • Settings > Advanced Settings > System Tests > Z-Wave Tests > Neighbor Info = viewable for every device I try
  • Settings > Advanced Settings > System Tests > Z-Wave Tests > Advanced Z-Wave Diagnostics > Network Health Test = Transmission Count: 1, Packet Error Count: 0, Route Changes: 1, Sum of Transmission Times: 15ms. I also frequently get 0 for Transmission Count and Transmission Times.
  • Settings > Advanced Settings > System Tests > Z-Wave Tests > Z-Wave Diagnostics = all light or dark green. I can provide a picture of this screen if that would be helpful.
2

Removing all devices and rebuilding the network from the ground up appears to have restored functionality. Is it expected to have to do this after a panel firmware upgrade?

3

Glad to hear you were able to resolve it, unfortunate that it required a full reinstall of the Z-wave network.

There was an older upgrade on the IQ Panel 2+ that could require a rebuild of the Z-wave network, but I am not aware of this on the IQ Panel 4 as any common issue.

I believe I have heard another similar case where S2 devices failed, but I believe that was a different panel type and firmware. It may be a general rare issue.