Over the last year I’ve experienced frequent drop-outs of my Xiaomi Motion and Temperature sensors, so last night I reset my hubs, deleted the “Location” and started all over from scratch. Only this time not one device would even connect to my hub when resetting the device(s). I have tried all ZigBee channels and a second reset. Also tried another hub as the “main” hub during the reset. My hubs are from the US and used in Norway. Wifi works as normal.
3 Smartthings Wifi (US version)
22 Ikea Lights (ZigBee)
6 Ikea plugs (ZigBee)
7 Xiaomi Motion Sensors (ZigBee)
3 Xiaomi Temperature Sensors (ZigBee)
1 Neato Vacuum Cleaner (SmartApp)
Edit: added info from below