A WiFi access point is a device that broadcasts a wireless signal so devices can connect to your network without cables
Most people think their router creates WiFi, but routers do two separate jobs: they connect your modem to the internet, and they broadcast a wireless signal. A WiFi access point does only the second job — it takes an existing internet connection (usually from a cable running to your router) and turns it into a wireless signal that phones, laptops, and tablets can find and join.
The simplest way to picture it: your router is like the main telephone switchboard in an old office building. An access point is like adding an extra phone jack in a room far from the switchboard so people there don't have to shout to be heard. The connection still goes through the main switchboard, but the access point makes the signal reach farther or stronger in a specific area.
You do not need an access point if your router's signal already reaches everywhere you use devices. You might need one if your WiFi dies in your bedroom, your basement, or your back patio — places too far from where your router sits.
Key Takeaways
- An access point broadcasts WiFi using an internet connection it receives through a cable, usually from your router.
- Access points are different from routers because they do not manage your internet connection or assign addresses to devices — they only spread the signal.
- You only need an access point if your current router's signal does not reach the areas where you use devices.
- Access points cost between $30 and $150 depending on speed and range, and most plug into power and connect to your router with an ethernet cable.
How an access point connects to your network
An access point needs two things to work: power and an internet connection. You plug it into an electrical outlet, then run an ethernet cable from your router to the access point. That cable carries the internet signal from your router to the access point, which then broadcasts it as WiFi.
Some access points can also connect wirelessly to your router instead of using a cable, but a wired connection is faster and more reliable. If you are placing an access point in a room far from your router, running a cable might seem inconvenient — but it is worth doing if you can, because wireless connections between the access point and router slow down the signal you actually use on your devices.
Once the access point is powered and connected, it shows up as a WiFi network on your phone or laptop, usually with a name like "Guest Network" or "Living Room WiFi." You connect to it the same way you connect to your main router's signal.
Access points versus routers versus mesh systems
A router manages your entire network. It connects to your modem, assigns addresses to every device so they can talk to each other, handles security, and broadcasts WiFi. If your router fails, your internet stops working.
An access point only broadcasts WiFi. It relies on your router to do everything else. If an access point fails, devices connected to it lose WiFi, but your router and other devices keep working normally.
A mesh system is different from both. It replaces your router entirely with multiple units that work together as one network. All the units look the same, they all broadcast the same WiFi name, and they automatically hand off your connection as you move between them. Mesh systems cost more than a router plus an access point, but they are simpler to set up and they cover large homes more evenly. Access points are the right choice if your current router works fine but does not reach everywhere; mesh systems are the right choice if you want to replace your router and expand coverage at the same time.
When you actually need an access point
Before you buy an access point, test whether your current router's signal actually reaches the problem area. Walk to the room where you lose WiFi and check your phone's signal strength — most phones show this in settings under WiFi or Network. If you see any bars at all, your router's signal is reaching there; the problem might be interference or distance rather than a dead zone.
You need an access point if you have dead zones where your router's signal does not reach, or if the signal is so weak that devices disconnect or load slowly. You do not need one if your router covers your whole home but you just want faster speeds — a faster router would help more than an access point.
Access points also make sense if you want to create a separate guest network. Some routers let you do this in settings, but an access point gives you a physical device you can place in a public area and manage independently from your main network.
What to look for when choosing an access point
Access points come in different speeds, usually labeled as WiFi 5 or WiFi 6. WiFi 6 is newer and faster, but both work fine for everyday use like browsing, video calls, and streaming. The main difference you will notice is that WiFi 6 handles more devices at once without slowing down.
Range matters more than speed for an access point. A device rated for 2,000 square feet of coverage will reach farther than one rated for 1,000 square feet. Check the specifications before you buy, and think about the size of the area you need to cover — not the size of your whole house, just the area the access point needs to reach.
Most access points cost between $30 and $150. Budget models work fine for small spaces or light use. Mid-range models ($60 to $100) are the most common choice because they balance cost and performance. Expensive models are usually faster or have more features you may not need.
How to set up an access point
Setup takes about 15 minutes. First, choose where to place it — ideally halfway between your router and the dead zone, and as high up as possible (on a shelf or mounted on a wall). Plug it in and wait for the lights to stop blinking, which means it has powered on.
Run an ethernet cable from an available port on your router to the port labeled "Internet" or "WAN" on the access point. Wait 30 seconds for the connection to establish. Then open the access point's instruction manual or look for a setup app — most modern access points have a smartphone app that walks you through naming your WiFi network and setting a password.
Once setup is complete, your devices will see the new WiFi network alongside your router's network. You can connect to whichever one has the stronger signal in your location. Some routers and access points can be set to use the same WiFi name, which makes your phone automatically switch between them as you move around — but this requires both devices to support the feature.
Troubleshooting common access point problems
If your access point powers on but does not broadcast a WiFi signal, check that the ethernet cable is plugged firmly into both the router and the access point. Unplug the access point for 30 seconds, then plug it back in — this resets it and often fixes connection problems.
If the signal is weak even after setup, move the access point higher or closer to the area you want to cover. Walls, metal objects, and microwaves interfere with WiFi, so placing the access point in an open location helps. If you are using a wireless connection between the router and access point, try switching to a wired ethernet cable instead.
If devices connect but then disconnect, the access point may be overheating or running outdated software. Make sure it has airflow around it and is not in a closed cabinet. Check the manufacturer's website for a software update and install it if one is available.
Frequently Asked Questions
Can I use an old router as an access point?
Yes. Most routers have a setting that lets you disable the router functions and use it as an access point instead. Check your router's manual for instructions on how to enable "access point mode." This is a cheap way to expand coverage if you have an old router sitting unused.
Do I need the same brand for my access point and router?
No. An access point from any manufacturer will work with any router. Different brands do not communicate with each other, but they do not need to — the access point straightforward extends the internet connection your router provides.
Will an access point slow down my internet speed?
A wired access point (connected with an ethernet cable) will not slow your speed noticeably. A wireless access point (connected to your router through WiFi) will cut your available speed roughly in half, because the access point and your devices share the same wireless channel. Wired is always better if you can run a cable.
Can I place an access point outside?
Most indoor access points are not designed for outdoor weather and will fail if exposed to rain or extreme temperatures. Outdoor access points exist but cost more and require weatherproof installation. For a patio or deck, place an indoor access point near a window or door instead.
How many access points do I need?
Start with one and test whether it solves your problem. Most homes need only one. Very large homes or buildings with thick walls might need two or three, but adding more access points creates more complexity and potential interference. A mesh system is usually a better choice if you need coverage in multiple distant areas.