I'm having quite a lot of trouble with ZigBee range in my small flat. I have a sonoff USB stick as my only coordinator right now, connected to my HAOS instance.
WiFi gets around perfectly fine through the rooms. ZigBee however dies basically as soon as I leave the room.
I have a front door sensor, a button, a PIR and a socket all running on ZigBee. I hoped the wall socket would act as a router and boost the signal a bit, but in its required location, it can't even join the network. If I move it into the same room as the stick it will join.
I'm in the UK looking for either advice to fix this issue or a recommendation for another coordinator which will work better, thanks!