I am writing a device handler for my Zigbee Thermostat.
When I use the “Smartthing Apps” to send a Set point the the thermostat by zigbee.writeAttribute(), the Smartthing App will show “Couldn’t connect to …” . Even though it show error, the set point of my thermostat is changed correctly.
If I use “Smartthing Classic Apps” to do same thing, all the control is OK, without error message and control successful.
Any hints what am I missed in my Device handler causing the difference behaviour between difference Apps.