You've hit it.
You've unplugged it and plugged it back in again.
You've waved your laptop within inches of the router.
You've hit it again. But your poor Wi-Fi connection persists. Why is it so slow, and how can you fix it?
It could be that your connection is being disrupted by your setup or your usage or a number of readily tweaked issues. Inspired by the arrival of OfCom's new Wireless Checker app, here's what could be ruining your Wi-Fi.