If you have Xiaomi devices, then you should definitely read these two threads, especially the second (keeping them connected):
I have 30+ Xiaomi devices on a separate hubitat with 10 zigbee repeaters. Five of them are Ikea Tradfri control outlets, and the other five are Ikea USB repeaters.
Xiaomi devices will fall off line and are difficult to keep paired if there are any non-Xiaomi compatible zigbee repeaters on the same zigbee network. Also, once they start routing through a particular repeaters, the devices keep routing through it all the time. This becomes an issue if you move Tradfri outlets around etc. Best to place them in their permanent spots before pairing any Xiaomi sensors.
