How can i boost my wifi signal?
what is happening, is a rare case of signal interference, theres and your wifi signals are probably on the same wavelength and are interfereing with eachother, you might have to call BT and ask them for a new router, or tell them about the problem. you could also try to boost your signal, by making a kind of booster, get enough foil to cover the modem, make it like into a shape that goes over and around the router but has one side open, position the open side to were you use your laptop and this might boost the signal and block out the interference.