I recently had problems with my laptop having limited connectivity when connecting to my router via wifi, after trying everything i could find on forums (i used my ipad to search), i decided to try using ethernet to my modem, it worked (thats how im asking this right now). Since my laptop cant always be plugged in like this, is there anything i can plug into my modem which my laptop can connect to using wifi (not bluetooth because my laptop is a floor up from the modem), preferably about £5-10 (i live in the uk if it makes a difference)