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Is there a wall blocking the straight-line distance? Generally, there will be one less signal across a wall, but one signal will not affect the speed of the network.
The most important thing is the direction of your router's signal. If you want to place your router somewhere else, place it facing a door or a window (whichever is closer). >>>More
The built-in antenna means 0 gain.
The signal emitted by the antenna with 0 gain can be used indoors within 50-80M and 30-50M >>>More
First of all, set the main router: SSID, fixed channel, wireless password, and Unicom. >>>More
The network cable to each room must be connected to the router, so that there may be a network on the socket of each room.
Maybe the wiring in the buried wall is damaged, if the computer is to be placed in the bedroom, you can lay the outside line into the bedroom, or use WIFI