The home is a duplex apartment, and each room has a broadband network interface. The router is in the living room downstairs, and the upstairs room is not good for receiving signals. Sorry, it's upstairs. Generally speaking, the wiring of a family is to collect the network cables of each room into a centralized cabinet behind the TV wall in the living room, and broadband home cables (ADSL telephone lines or residential broadband network cables or optical fibers) are also in this cabinet. All you have to do is connect the home line to the WAN port of your route (if it is ADSL or optical fiber, of course, it must be connected first). ...