When it comes to wireless performance, there are actually two main factors to consider: range and speed. Yes, you can have one without the other. For example, it's great having a speedy wireless network, but if you only get great speed when you use a wireless client right next to the router and get no signal when you're only 15 feet away, then speed doesn't mean much. You need to boost the signal's range. If your device can barely open friends' Facebook pictures when you're in the same room as the router, then we're talking about problems with speed.

In general, speed and range issues can all be lumped together as performance issues. You want both your speed and range to be as robust as possible. There are several factors that can impact both aspects of performance.
Distance can certainly impede performance. You may have a room in your home or office that is simply too far from your wireless router. Even the way your home or office is structured could be a culprit in poor wireless performance. If the signals have to bounce around too many corners to reach your wireless devices, that can cause problems (although a technology in newer, premium routers called beamforming, can help direct a router's signal to wireless clients).
Interference with the signal can be big factor in performance, too. If you live in an apartment building, your home might be inundated with signals from everyone else's routers. Maybe structural interference is the culprit. If your furnace, washing machine, and dryer are all between your router and your laptop, that doesn't help.
Maybe it's the software you're using. Routers need software updates just like everything else—and sometimes the firmware they initially ship with is improved with a later-released update.
These are just a few of the possible reasons your connection might be poor (or nonexistent). Fortunately, there are many ways to extend your wireless signal, and most of them simply involve a bit of tweaking to your wireless network or adding some affordable components. We'll walk you through ten of the most useful fixes for your connectivity woes.