Boosting wi-fi signals

  Zip 16:31 29 Oct 2003
Locked

I have just installed a wi-fi moden linked to my pc via USB cable. The wi-fi adapter connected to my lapto works fine when the laptop is place not to far from the wifi modem. Although the room where I usually have the laptop positioned is only about 20m from the modem, there are thick walls between and the signal doesn't carry.
Is there such a thing as a wi-fi signal booser/relay that can be placed somewhere between the source modem and the laptop?

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