Be sure to not connect to a USB 3.x port, instead connect the Zigbee Coordinator radio adapter either directly to a USB 2.0 port or through a powered USB 2.0 hub (as that will practically convert a USB 3.0 port into many USB 2.0 ports). Also, suggest buying a longer USB extension cable and a few more Zigbee Router devices as Zigbee has a relatively short range and poor penetration in addition to being very sensitive to interference. Read and follow → https://community.home-assistant.io/t/guide-for-zigbee-interference-avoidance-and-network-range-coverage-optimization/515752