What’s the difference between the internet & WiFi?

WiFi technology is extremely popular and available just about everywhere. Whether you’re grabbing a cup of coffee, shopping for shoes, or enjoying a family pizza night, you’re likely to have a WiFi hotspot available. You may hear people talking about “getting onto WiFi” or not being able to “get onto WiFi”. Most of the time, the issue is that they can’t get their laptop, smartphone, or other device connected to the internet.
Is WiFi the same as the internet? No, it’s not. And with home networks getting more sophisticated all the time, with more and more connected devices, it’s helpful to have a clear understanding of the difference between the two.
What is the internet?
The internet is a massive global communications network. In fact, as its name suggests, it’s more than just one network —it’s a series of thousands of inter-connected networks.
While no one person or organization owns the internet itself, each internet service provider (ISP) typically owns its own network. It buys and installs the specialized networking equipment that makes it possible for customers like you—in addition to businesses, universities, hospitals and more—to connect to the internet.
When you connect to your ISP’s network from your home or workplace, you have the ability to connect with other networks, companies, services and individuals who are also connected to the internet. For example, you can stream movies on Netflix by connecting via the internet to computer servers that Netflix owns or read your email by connecting to one of Gmail’s servers.
When you purchase monthly internet services for your home, your ISP gives you all the physical equipment you need to connect your own devices to the internet. This includes a physical line, such as copper, coaxial or a fiber optic cable, that will connect your home to the ISP’s network. Inside your home, this physical line is connected to an electronic device that’s usually called a modem.
How do I connect my devices to the internet?
With your modem providing the internet connection into your home, there are two ways you can connect your device to the modem.
Connecting with a physical cable
The first method, which is not very common anymore, involves physically plugging your computer into the port on the back of your modem using what’s called an Ethernet cable. When your computer is plugged into the modem, it becomes part of your ISP’s network, along with all the other individuals and business customers who have also connected their devices.
Connecting over WiFi
The second method, which is the most common today, involves connecting your computer, tablet or smartphone to your ISP’s network without using a physical wire. This “wireless” connection is made possible by WiFi technology; specifically by a second device in your home called a router or sometimes referred to as a gateway. This router is physically plugged into the modem with a cable or it is combined with the modem into a single piece of equipment.
The WiFi router uses radio technology to broadcast a unique name (also known as a service set identifier, or SSID), which you or your ISP chooses when the router is first set up. When you’re on your laptop or other device, you can see a list of other WiFi routers nearby such as yours and your neighbors’. You can select your router name from the list and enter the router’s password. And just like that, you’re connected to WiFi. Since your router is connected to your modem, you can now access any online service or go to any website using your web browser.
Is connecting to WiFi the same as connecting to the internet?
The short answer is no, not technically. Just because you’re connected to your WiFi router does not mean that you are also connected to the internet.
You might notice from time to time that your computer says you’re connected to WiFi but you are not able to access any websites or send email. This means one of two things: either your modem is not properly connected to the internet or your WiFi router is not successfully connected to your modem.
So the next time you “get on WiFi,” you’ll know there’s a bit more to it. You are actually connecting to a router that is then connecting to the modem that is then connecting to the internet.
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Updated: Apr 1, 2022