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No, if there is a wall, the signal is weak.
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Maybe it's too far away, and there's a lot of wall to wear.
Once connected, log in to the router line, set up the wireless there, and then add the password for the wireless connection to prevent others from using it.
You can add a wireless router at the entrance line, connect the Unicom cable with it and set it up, and then plug the network cable into the network port of each house and you can use it, and use the WiFi of the wireless router to surf the Internet where there is no network port.
If the home area is large, buy another wireless router, and the second wireless router can be set up according to the wireless bridging method to achieve full WIFI coverage. >>>More
You can add another wireless router and connect it in series normally. >>>More
Of course, fiber optic cables can't be connected anymore, but there are also fiber extension devices on the Internet that are not very expensive.