The six ways internet reaches your house, what to ask before you sign up, and why your Wi-Fi is a separate question.
Keith Parsons · CWNE #3
Written for US homes · September 2026
Start here
The short answer
Internet reaches your house in one of six ways. Five end at a box from your provider. A phone hotspot is its own box. Your Wi-Fi starts at the router, right after that box.
This guide answers three questions. What are your choices? Why does it matter which one you pick? And what should you check before you sign up?
Figure 1. Three things you're buying. Speed, lag and a data limit are three different things.
A word on the words Your provider is the company you pay. Their box is where their line ends in your house. The router plugs into that box and makes your Wi-Fi. Often one box does both jobs.
The one idea to remember The service you pay for stops at the router. The Wi-Fi inside your house is a separate thing. A faster plan won't fix a slow back bedroom.
What's inside
Six ways in3
Every road is shared4
Wires to your house5
Radio to your house7
Why lag is its own number9
The service, or the Wi-Fi?10
Which one should I pick?11
Four things people get wrong13
Where these facts come from14
Home Internet, Explained2
How it gets there
Six ways in
A strand of glass, a cable TV line, an old phone line, a radio tower, a satellite dish, or your phone. Most end at the same place: a box in your house.
Figure 2. Six ways in. Five end at your provider's box; a phone hotspot is its own box. Everything right of the dashed line is yours, starting with the router.
That handoff point matters. When something is slow, the first question is which side of the line the problem is on.
Home Internet, Explained3
How it gets there
Every road is shared
No home gets a private pipe. Every kind of service shares something with the neighbors.
Figure 3. What each option shares. Fiber splits one strand among a group of homes. Cable shares one line along the street. A cell tower and a satellite beam each serve many homes at once.
That's why the same plan can feel fast at noon and slow at eight at night. More neighbors are online.
Figure 4. Same plan, busier road. In the evening more neighbors share the same road, so each home's share gets smaller. The lime part is yours.
Home Internet, Explained4
Your choices
Wires to your house
A wire into your house is usually the steadiest choice. Rain and snow don't slow it down.
Figure 5. Three kinds of wire. Fiber carries light through glass, cable uses the TV line, and DSL uses the old phone line. Each one ends at a box inside your wall.
Fiber
Light through a glass strand. The fastest, the quickest to answer, and it often sends as fast as it receives.
Cable
The same line as cable TV. Fast downloads. Sending is much slower.
DSL
The old phone line. The slowest wired choice, and it gets slower the farther you live from the phone company.
Home Internet, Explained5
Your choices
Figure 6. Sending matters too. Video calls, photo backups and cameras send data up. Fiber often sends as fast as it receives. Cable and 5G home internet send much less.
Figure 7. DSL slows with distance. The same phone line gives slower service to homes farther from the phone company. Not to scale.
Caution
DSL is going away Phone companies are shutting down their old copper lines. If DSL is all you have, look now for other choices at your address.
Home Internet, Explained6
Your choices
Radio to your house
No wire? A radio link can reach almost anywhere. It's more at the mercy of weather, trees and busy times.
Figure 8. Four ways radio reaches a house. Towers need a clear path, satellites need open sky, and the far satellite answers slowly. Not to scale.
5G home internet
A box in your window talks to the same towers your phone uses. It slows down when the tower is busy.
Local wireless
A small local company aims an antenna on your roof at its tower. It needs a clear view.
Low-orbit satellite
A dish talks to satellites flying fairly low, like Starlink. Quick to answer, and it works almost anywhere with open sky.
High-orbit satellite
A dish aims at one satellite far out in space. It works, but every answer takes a long trip.
Home Internet, Explained7
Your choices
Figure 9. Low orbit and high orbit. Low-orbit satellites fly just above the Earth. A high-orbit satellite sits far out in space, so every answer takes much longer to come back.
A phone hotspot uses your phone's data plan. It's fine for a trip, or as a backup. It's a poor fit for a whole family.
Figure 10. A hotspot is for one or two devices. Your phone can share its data with a laptop on a trip. Sharing it with a whole house of screens is a poor fit.
Home Internet, Explained8
What you'll feel
Why lag is its own number
Speed is how much arrives. Lag is how long each answer takes to come back. They're two different things.
Lag decides whether a video call feels natural or a game feels smooth. A faster plan barely changes it.
Figure 11. How long an answer takes. Wired service and low-orbit satellites answer quickly. A satellite far above the equator adds about half a second, which you notice on every call.
Lag also rises when someone else in the house is streaming or uploading. That's normal. It rises most on DSL.
Figure 12. A busy line means a longer wait. When someone uploads, your video call waits in line behind it. That wait is lag.
Home Internet, Explained9
Test it
The service, or the Wi-Fi?
A speed test on your phone measures two things at once: your service and your Wi-Fi.
Figure 13. Two different measurements. The provider's promise ends at the router. Your phone in the back bedroom adds the Wi-Fi on top. When the two tests disagree, the difference is your Wi-Fi.
Test both ways
Plug a laptop into the router with a network cable. Run a speed test. That's the service you pay for.
Take the laptop or your phone to the room that feels slow. Run the test again over Wi-Fi.
Compare. If only the Wi-Fi test is slow, the fix is in your house, not a bigger plan.
Figure 14. What the two tests tell you. If only the Wi-Fi test is slow, fix the Wi-Fi. If the wired test is slow too, the service itself is slow.
Home Internet, Explained10
Choosing
Which one should I pick?
Start at the top, and stop at the first one you can get.
Figure 15. Pick in this order. Fiber first, then cable. Without a wire, try 5G home internet or a low-orbit satellite before the last choices.
Look up your address The FCC's national broadband map shows which providers say they serve your home. If a listing is wrong, you can challenge it.
Figure 16. See who serves your address. Type your address on the FCC's national broadband map, then read the list. Names here are examples.
Home Internet, Explained11
Choosing
Before you sign up Every provider has to show a Broadband Facts label on its sign-up page. It's like a food label. Read it for the upload speed, any monthly data limit, and the real price after any promotion.
Figure 17. Read three lines on the label. The real price after any deal, the upload speed, and any monthly data limit. Simplified: a real label has more lines.
Home Internet, Explained12
Straight facts
Four things people get wrong
Each myth is followed by what's true.
MythSlow in the bedroom means a slow internet plan.
FactOften it's the Wi-Fi. Test at the router first.
MythA faster plan fixes lag.
FactLag and speed are different things. More speed doesn't lower lag.
MythUpload doesn't matter.
FactVideo calls, backups and cameras all send data up. Cable and 5G send much less than they receive.
MythUnlimited means unlimited.
FactMany plans slow you down after a monthly amount. The Broadband Facts label tells you where.
Figure 18. The four myths in pictures. Each picture matches a myth above, in the same order.
Home Internet, Explained13
Sources
Where these facts come from
Checked on 27 September 2026. Provider plans change often. The Broadband Facts label is always the current word for your address. Prices are deliberately left out.
FCC, Thirteenth Measuring Broadband America Fixed Broadband Report, FCC 24-136, Appendix C (2024; test period 2022): idle latency by technology, latency under load, DSL delivery of advertised speed, test boxes at the router
FCC Broadband Data Collection and National Broadband Map help pages: what the map shows, the December 2025 data, availability and location challenges
FCC Broadband Consumer Labels (fcc.gov/broadbandlabels) and FCC 22-7
Broadband Breakfast, 2026-01-13: AT&T approval to discontinue copper service
T-Mobile Home Internet FAQ and plans pages: typical speeds and data prioritization
Starlink Specifications (latency 25 to 60 ms on land; upload typically 10 to 30 Mbps)
ESA, Types of orbits (35,786 km, 22,236 miles); GPS.gov, Space Segment (20,200 km, 12,550 miles)
Speed-of-light arithmetic: 4 × 35,786 km ÷ 299,792 km/s ≈ 0.48 s
About this guideWritten for people who aren't technical and want to choose home internet with their eyes open. Provider and product names are trademarks of their owners. This guide is independent and isn't affiliated with or endorsed by any provider named in it.
Home Internet, Explained · Keith Parsons · CWNE #314
