The Three Ways to Connect: Ethernet, Wi-Fi, and Mobile Hotspot
You can connect your computer to the internet through three main routes: a wired ethernet cable plugged directly into your router, a Wi-Fi connection using your wireless network, or a mobile hotspot from your phone or a dedicated device. Ethernet is the fastest and most stable. Wi-Fi is convenient and works anywhere in range of your router. A mobile hotspot works when you have no other option but uses your phone's data plan and drains its battery.
Which one you use depends on what hardware you have, where your computer sits, and whether you prioritize speed or mobility. Most people use Wi-Fi for everyday work. Ethernet is better for gaming, video editing, or large file transfers. A hotspot is a backup when your home internet is down.
Key Takeaways
- Ethernet cables deliver the fastest, most stable connection and require only a cable and a router with an available port.
- Wi-Fi connects wirelessly but is slower than ethernet and works only within range of your router.
- A mobile hotspot lets you use your phone's data plan on your computer when no other connection is available.
- Windows and Mac both show available networks and let you connect in settings; most require a password the first time.
- If your computer does not detect any networks, check that Wi-Fi is turned on, the router is powered, and you are in range.
Connecting with an Ethernet Cable
An ethernet cable is a thin cord with a plastic connector on each end. One end plugs into your router (the device your internet provider gave you or that you bought separately). The other end plugs into the ethernet port on your computer — usually on the back or side, labeled with a small cable icon.
Once both ends are plugged in, your computer should detect the connection automatically within a few seconds. On Windows, open Settings, go to Network & Internet, and check that it shows "Ethernet" with a green checkmark. On Mac, open System Settings, click Network, and confirm that Ethernet shows "Connected." If it does not appear, unplug the cable, wait five seconds, and plug it back in.
Ethernet cables come in different lengths — 3 feet, 10 feet, 25 feet, or longer. They cost between $5 and $20 depending on length and quality. If your router is far from your desk, a longer cable or a second router in another room may be worth the cost for the speed gain.
Connecting to Wi-Fi on Windows
Click the network icon in the bottom right corner of your taskbar — it looks like a radio tower or signal bars. A list of available networks appears. Find your network name (called the SSID), which your internet provider or router manual should tell you, and click it.
A password box appears. Type the Wi-Fi password, which is usually printed on a sticker on your router or in your router's setup paperwork. Click Next or Connect. Windows will remember this network and connect automatically the next time you are in range.
If you do not see your network in the list, make sure your router is powered on and you are within 100 to 150 feet of it (depending on walls and interference). If it still does not appear, restart your router by unplugging it for 30 seconds, then plugging it back in.
Connecting to Wi-Fi on Mac
Click the Wi-Fi icon in the top right corner of your menu bar — it looks like a fan or signal bars. A dropdown menu shows available networks. Click your network name and enter the password when prompted.
Mac will save the password and connect automatically to that network in the future. If you forget the password later, you can find it in System Settings under Network, then Wi-Fi, then Advanced — but you will need your Mac password to view it.
If your network does not appear, check that Wi-Fi is turned on (the icon should not have a line through it) and that your router is powered. If you still see nothing, move closer to the router and try again.
Using a Mobile Hotspot
A mobile hotspot turns your phone or a dedicated hotspot device into a portable router. On an iPhone, go to Settings, tap Cellular, then Personal Hotspot, and turn it on. On Android, go to Settings, tap Network & Internet, then Hotspot & Tethering, and turn on Wi-Fi Hotspot. Your phone will display a network name and password — use these to connect your computer the same way you would connect to any other Wi-Fi network.
Be aware that using a hotspot drains your phone's battery quickly and counts against your phone's monthly data plan. If you have a limited data plan, streaming video or downloading large files over a hotspot can use up your allowance in hours. A hotspot is best for occasional browsing or email when your home internet is temporarily down.
Troubleshooting When Nothing Connects
If your computer does not see any networks, first check that Wi-Fi is turned on. On Windows, click the network icon and make sure Wi-Fi is not in airplane mode. On Mac, click the Wi-Fi icon and select "Turn Wi-Fi On" if it is off. Then wait 10 seconds for networks to appear.
If networks still do not show, restart your router. Unplug it from power, wait 30 seconds, and plug it back in. This usually takes two to three minutes to complete. While you wait, restart your computer as well — this clears temporary connection issues.
If you see your network but cannot connect, try forgetting it and reconnecting. On Windows, go to Settings > Network & Internet > Wi-Fi > Manage Known Networks, find your network, and click Forget. Then reconnect and re-enter the password. On Mac, go to System Settings > Network > Wi-Fi > Advanced, find your network, click the minus sign, and reconnect.
If you still have no connection after these steps, contact your internet provider to confirm the service is active and the router is working. They can run a test from their end and may send a technician if the problem is with their equipment.
When to Use Each Connection Type
Use ethernet for gaming, video calls, or large file transfers — anything where a fast, stable connection matters. Ethernet has no lag and does not drop out if someone else turns on a microwave or moves between rooms.
Use Wi-Fi for everyday browsing, email, and streaming. It is fast enough for most tasks and lets you move around your home or office without unplugging a cable.
Use a mobile hotspot only when you have no other option — when traveling, when your home internet is down, or when you are away from home and need to work. Check your phone's data plan first to make sure you have enough data to cover what you plan to do.
Frequently Asked Questions
Why is my Wi-Fi slower than my ethernet connection?
Wi-Fi travels through the air and can be slowed by walls, distance, and interference from other devices like microwaves and cordless phones. Ethernet is a direct cable with no obstacles, so it is consistently faster. If speed matters for your work, ethernet is worth the inconvenience of a cable.
Can I use both ethernet and Wi-Fi at the same time?
Yes, but your computer will use only one at a time. It usually prioritizes ethernet if both are connected. If you want to use Wi-Fi instead, disconnect the ethernet cable or disable it in your network settings.
What if I do not know my Wi-Fi password?
Check the sticker on your router — the password is usually printed there. If the sticker is worn or missing, log into your router's settings page (usually 192.168.1.1 in a web browser) using the admin password, also on the sticker. From there you can view or change your Wi-Fi password.
Does it cost money to connect to the internet?
You pay your internet provider a monthly fee for the service itself. Connecting to it — whether by ethernet, Wi-Fi, or hotspot — does not cost extra. A mobile hotspot uses your phone's data plan, which may have overage charges if you exceed your limit.
How far away can I be from my router and still get Wi-Fi?
Most routers reach 100 to 150 feet in open space, but walls and floors reduce that range significantly. Each wall cuts the distance roughly in half. If you need Wi-Fi in a distant room, move the router to a central location, buy a Wi-Fi extender, or use ethernet in that room.