It’s not just you. Your Wi-Fi probably is slower than it should be, and this is why.
As we all know, there is nothing worse than having no Wi-Fi. Except perhaps having really slow Wi-Fi.
It's one of the most common complaints to internet service providers and the scourge of people in both rural and urban areas.
Dr Alex Hill of Carnegie Mellon University, whose team built the world's first big Wi-Fi network, said most customers only receive 50% of their router's potential Wi-Fi speeds.
There are a number of reasons for this.
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Signal congestion is the enemy of a strong Wi-Fi signal.
When you connect to Wi-Fi you're using radio waves, and as like with radio stations there's a limited amount of space on the airwaves. It matters how many other Wi-Fi routers are nearby, in your building, on your street.
Steve Biddle, an engineer from New Zealand with expertise in wireless hotspots and networking, wrote on Geekzone last week: "If you’re living in an environment such as an inner-city apartment where there may be hundreds of nearby networks, you’re basically living in the worst possible environment possible for Wi-Fi."
Chillingly, even if you have full Wi-Fi bars on your phone, this could still be a problem.
Given that you might be trying to access a wireless signal through one or more internal walls as your router competes with anything up to 50 connected devices in the area, it's a wonder that some Wi-Fi connections work at all.
Wi-Fi devices can't receive and send data at the same time.
Wi-Fi has to alternate between transmitting data and receiving it – it's what's called a half-duplex system.
A full duplex system, i.e. a wired ethernet connection, can send data both ways. So Wi-Fi can have a natural delay compared to other types of internet connection.
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