I have installed my Hubitat in the attic, on my bungalow house. There is 5 cm of glass fibre insulation. Hubitat is unable to communicate with the Aeotec Door/Window Sensor 7, located approximately 8 meters away from Hubitat, two concrete walls in the path. The devices are working fine as I have tested them in short range.
How to improve the range on scenarios like this? A range extender seem to be the cheaper solution, but it will require one for Zigbee devices and other for ZWave.
What is your experience improving the Hubitat's range?