A wireless access point is a device that broadcasts a WiFi signal so your devices can connect to the internet without a cable

A wireless access point (often called an access point or AP) is a piece of hardware that takes an internet connection from a wired source — usually an ethernet cable plugged into a modem or router — and turns it into a WiFi signal that your phone, laptop, or tablet can pick up. It is the thing that makes the WiFi network your devices see when you look for available networks.

The key difference between an access point and a router is what they do with that signal. A router both creates the WiFi network and manages which devices can talk to each other and to the internet. An access point only broadcasts the signal; it relies on a router or modem elsewhere in your home to handle the actual traffic. This matters because it means an access point is simpler, cheaper, and designed to do one job well: extend WiFi to a dead zone in your house.

Key Takeaways

  • An access point broadcasts WiFi from a wired internet connection, letting devices connect wirelessly without adding routing or network management.
  • Access points work best when connected to your existing router or modem with an ethernet cable, not when placed randomly around your home.
  • Common brands include Ubiquiti, TP-Link, Cisco, and Netgear, with models ranging from under $50 to several hundred dollars depending on speed and range.
  • You need an access point if you have dead zones where WiFi is weak or nonexistent, but not if your current router already covers your space.

When you would use an access point instead of a second router

If you have a room or hallway where WiFi barely reaches, your first instinct might be to buy another router. But a second router often creates problems: it either broadcasts a separate network with a different name (so you have to manually switch between them), or it tries to extend your existing network and causes interference or drops your speed in half.

An access point solves this cleanly. You run an ethernet cable from your main router to the access point, plug in the access point, and it broadcasts the same WiFi network with the same name and password. Your devices see one seamless network and roam between the main router and the access point without dropping the connection. The ethernet cable does the heavy lifting of moving data, so the WiFi stays fast.

This is why access points are standard in offices, apartments, and larger homes. They are also the tool installers use when they need to cover a building with multiple WiFi zones without the mess of separate networks.

How to set up an access point in your home

Most access points follow the same basic setup. First, find a location roughly halfway between your main router and the dead zone — a central hallway or upper floor often works well. The access point needs to be plugged into power and connected to your router with an ethernet cable. If you cannot run a cable, some access points support wireless backhaul (they connect to your router over WiFi instead), but this cuts your speed roughly in half and is a last resort.

Once plugged in, you log into the access point's admin panel using a web browser or mobile app. The exact steps vary by brand — Ubiquiti, TP-Link, Cisco, and Netgear all have different interfaces — but the goal is the same: tell the access point to use the same WiFi name and password as your main router. Many modern access points can detect your existing network and join it automatically.

After setup, your devices should see your WiFi network in the same place as before. When you move around your home, your phone or laptop should stay connected without dropping or switching networks. If you see two networks with similar names, or if devices keep disconnecting, the access point is not configured correctly and you may need to reset it and try again.

The difference between access points and WiFi extenders

A WiFi extender is cheaper and easier to set up than an access point, but it works differently and has real drawbacks. An extender picks up your existing WiFi signal wirelessly, amplifies it, and rebroadcasts it. This means it does not need an ethernet cable — you just plug it in halfway between your router and the dead zone.

The catch is that an extender uses the same WiFi channel to receive and transmit, which cuts your available bandwidth roughly in half. If your main router is already slow, the extended signal will be even slower. Extenders also often create a separate network name, so devices do not roam smoothly between the main router and the extender.

An access point avoids this by using a wired backhaul (the ethernet cable), so it can receive data on one path and transmit on another without interference. The trade-off is that you have to run a cable, which is not always possible in older buildings or apartments. If you can run a cable, an access point is worth the extra cost and setup time. If you cannot, an extender is better than no coverage at all, but expect slower speeds in the extended zone.

Common access point brands and what to expect

Ubiquiti makes professional-grade access points used in offices and hotels. Their UniFi line is popular for home use because it is reliable and lets you manage multiple access points from one app. Prices start around $80 and go up to $300 or more for models with high speed or advanced features.

TP-Link and Netgear make consumer-friendly access points in the $50 to $150 range. These are simpler to set up than Ubiquiti and work well for most homes, though they have fewer management options if you want to monitor or control the network remotely.

Cisco makes business-class access points that are overkill for a home but common in offices. If you are buying for your home, Ubiquiti, TP-Link, or Netgear are better choices. The brand matters less than whether the access point supports your WiFi standard (WiFi 5 or WiFi 6 are current), has good reviews for range, and fits your budget.

What to look for when choosing an access point

The most important spec is WiFi standard: WiFi 5 (802.11ac) is current and fast enough for most homes, while WiFi 6 (802.11ax) is newer and handles more devices at once. If your main router is WiFi 5, buying a WiFi 6 access point gives you some future-proofing but will not make your network faster unless you also upgrade the router.

The second thing to check is power and antenna configuration. Access points with more antennas and higher transmit power reach farther, but the difference between a $60 model and a $150 model is usually range, not speed. If you are covering a small apartment, a budget model works fine. If you are covering a large house or multiple floors, spend more on range.

Third, confirm that the access point supports roaming — the ability to hand off your device smoothly from one access point to another as you move. Most modern access points do this, but it is worth checking the spec sheet or reviews if you plan to add more access points later.

Frequently Asked Questions

Do I need an access point if my router already covers my whole home?

No. An access point is only useful if you have dead zones where WiFi is weak or missing. If your current router reaches everywhere you need it, adding an access point will not improve anything and may cause interference. Test your signal strength in the rooms you use most before buying.

Can I use an old router as an access point?

Yes, many routers can be reconfigured to work as access points. You disable the router's DHCP server and connect it to your main router with an ethernet cable, then set it to broadcast the same WiFi name and password. The exact steps depend on your router model, but most manufacturer support pages have instructions. This is a good way to reuse old hardware.

What if I cannot run an ethernet cable to the access point?

Some access points support wireless backhaul, meaning they connect to your router over WiFi instead of a cable. This is slower than a wired connection and cuts your speed roughly in half, but it works when running cable is not possible. A WiFi extender is another option if you want something cheaper and easier to set up, though it has the same speed penalty.

Will an access point slow down my internet speed?

Not if it is connected with an ethernet cable. A wired access point passes data through the cable, so your speed stays the same as your main router. If you use wireless backhaul instead, expect your speed in the extended zone to drop by about half because the access point has to receive and transmit on the same WiFi channel.

How many access points do I need?

Start with one in the area with the weakest signal. If that does not cover your whole home, add a second one. Most homes need one or two; anything larger usually benefits from a mesh WiFi system instead, which is designed to handle multiple nodes working together more smoothly than separate access points.