Make sure follow best practice recommendations (like using a long USB extension cable to a USB 2.0 port to avoid EMF interference and add a few known good Zigbee Router Devices), read and try follow all the tips here → Zigbee networks: how to guide for avoiding interference + optimizing using Zigbee Router devices (repeaters/extenders) to get best possible range and coverage
Most issues with Aqara and Xiaomi devices are resolved if re-pair those devices them again after adding more/new (know good) Zigbee Router devices and avoiding EMF/EMI/RMI interference, but if still have issues with Aqara and Xiaomi devices then also see this too → Xiaomi & Aqara Devices - Pairing & Keeping them connected - Devices - Hubitat