The central function of the main router in the Xiaomi Mesh System BE3600 Pro is the main central gateway. When used with other Xiaomi smart devices (Wi-Fi devices and sub-devices connected to the main gateway/slave gateway), it can achieve local automation and local control within the LAN when in the same home and LAN.
Note:
1. “The same home” mentioned above represents that the devices need to be configured in the same home in the Mi Home/Xiaomi Home APP. Besides, the devices and the gateway need to be in the same Wi-Fi environment;
2. The sub-router and the single Xiaomi Mesh System BE3600 Pro have Bluetooth Mesh gateway function, but do not have central gateway function.
Does it help?