For the last few days I've had huge drop in my wifi signal at home, so much so that my desktop couldn't see the router at all! The router definitely needs checking but in the interim I fashioned a booster in about 3 minutes using a piece of cardboard and some aluminium packing foil and I was back browsing at almost normal speed.
To get a better idea of how to do this in a bit more of a professional way check out this video...
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