I recently reached out to bulb about my IHD not working (had it nearly a year and it only ever shows the tutorial). After lots of back and forth, they have said its because of meter location.
My meters are on the floor, less than 5 meters apart, with a single wall between them. I also have small cupboard in the way of the electric box so the toddler doesnt touch it. Because of this apparently my IHD wont work and Bulb cant connect to my meters (calling BS here).
So where are your meters? are they both in direct line of sight with no coverings? Ideally i would like to hear from those that have IHDs that work.