Modem vs. Router: What’s the Difference? (2023)

While both a modem and a router help your devices connect to the internet, they have separate (and complementary) functions. A modem is a box that connects your home network to your internet service provider, or ISP. A router is a box that lets all of your wired and wireless devices use that internet connection at once and allows them to talk to one another directly. Often, your internet service provider will give you a device typically referred to as a gateway, a single box that serves as both modem and router, but these are still different technologies. You need the features of both a modem and a router, integrated or not, in order to have an internet connection for all of the devices in your home.

For people who have internet access provided by a cable company (and who don’t have gigabit or higher internet speeds), we recommend using a separate modem and router if possible. Modem technology changes slowly, and you can usually use a modem for years until it breaks. But you might need to replace a router because you want better coverage, because you’ve added more devices to your network and your old router isn’t keeping up, or because you want to take advantage of the latest improvements in Wi-Fi technology, which can change more often than modem standards do. Typically you can save $5 to $15 on your monthly internet bill if you use your own modem and router instead of the equipment your cable provider offers.

If you have a DSL or fiber internet connection, your ISP is likely to require you to use its provided modem, which usually serves as a gateway and router as well, and the situation is more complicated if you also get phone service from your ISP.

Modems

Modem vs. Router: What’s the Difference? (1)

A modem transforms digital information from your computer into analog signals that can transmit over wires (and vice versa) by modulating and demodulating electrical impulses sent through phone lines, coaxial cables, or other types of wiring. Most standalone modems have just two ports: one that connects to the outside world, and an Ethernet jack that connects to a computer or a router.

If you use a cable internet service, your ISP probably gave you a modem (or gateway) when it set up your service. But if you look at your bill, you’re likely to discover that you’re paying a monthly fee (typically around $10) for that equipment.

Motorola MB7621

The best modem for most people

Compatible with the most ISPs, the MB7621 supports internet plans up to 600 Mbps. It’s widely supported, it has a two-year warranty, and it pays for itself in about eight months.

Buying Options

$90* from Amazon

$67 from Walmart

*At the time of publishing, the price was $103.

(Video) Modem vs Router - What's the difference?

That’s one reason we recommend that cable internet users buy their own modems.1 Good ones such as the Motorola MB7621cost between $60 and $80; the modem will pay for itself after a few months and will last for years, even if you change cable providers.

If you use DSL or fiber internet (such as Verizon’s Fios service), your choices are more limited. These ISPs usually provide a gateway and may not allow you to use your own modem even if you can find a compatible one to use with their service in the first place. In many cases you can turn off the router features of a gateway and use it as a standalone modem, which lets you add your own router, but how you do so (and whether adding a router is supported at all) differs depending on your service provider and the type of internet connection you have.

Routers

Modem vs. Router: What’s the Difference? (3)

The term “home network,” as we’re using it here, refers collectively to the system of interconnected devices in your home plus your router itself. Your router’s primary responsibility is to direct, or route, data between devices in your home, as well as between those devices and the wider internet. Your modem connects to one port on the router—usually but not always labeled “Wide Area Network” or “WAN”—and all of your devices connect to the other ports, or wirelessly over the Wi-Fi standard.

(Video) HelloTech: What Is the Difference Between a Modem and a Router?

TP-Link Archer AX50

The best router for most people

The TP-Link Archer AX50 creates a speedy, responsive network that works well in a medium-size house. You have to spend a lot more on a router—or a mesh kit if you have a very large home—to get anything even a little better. It’s our first WI-Fi 6 (802.11ax) router pick.

Buying Options

$96* from Walmart

$96 from Amazon

*At the time of publishing, the price was $150.

The best router for you depends on the size of your home, how many devices you connect to your network, and where the router is in your home. Most one- or two-bedroom apartments with a couple dozen devices can be covered by a standalone Wi-Fi router. Good ones like the TP-Link Archer AX20 are available for around $80, but great ones like the TP-Link Archer AX50 cost closer to $120. These models function best if you can place them near the center of your home and give all of your devices the best wireless connection possible; even one or two devices with a weak connection can reduce performance for all the other wireless devices on the network.

Eero 6

Better for big spaces

The mesh-based Eero 6 covers large spaces better than a single router. It was consistently fast in a variety of tests, surpassing more expensive options. It’s also easier to set up than other models we tested.

(Video) Computer Fundamentals - Routers VS. Modems - What is the Difference Between a Router and a Modem? PC

Buying Options

$179* from Amazon

$179 from Best Buy

*At the time of publishing, the price was $200.

If you have a larger home, if you have lots of smart devices in addition to your computers and phones and streaming boxes, or if your router has to sit far away from the center of your home, a Wi-Fi mesh-networking kit is a better fit than a single router or your ISP’s provided gateway. Good ones like the Eero 6 kit run for around $200, and great ones like the Asus ZenWiFi AX kit typically cost somewhere between $300 and $400. These kits usually come with two or three pieces, including one piece that functions like a standalone router—where your modem connects to your home network—and one or more satellite pieces. Each satellite acts as a go-between for your router and an area of your home with a poor Wi-Fi signal, increasing the range and improving the quality of your entire wireless network.

Modem vs. Router: What’s the Difference? (6)

Unlike traditional Wi-Fi extenders, which don’t coordinate with your router, these mesh Wi-Fi systems are developed to work together; they make sure that each of your devices is connected to the router or satellite that provides the best, strongest signal. You can add more satellites to the network later if you’re still unhappy with the coverage in certain parts of your home or if you move to a bigger place.

If you want to know more about the way your router does its job, this summary of common networking terminology is a good place to start.

Troubleshooting and maintaining your router or gateway

Routers are complicated pieces of technology, and we can’t tell you everything you’d need to know to fix every networking problem you might run into. But these common troubleshooting and maintenance tips should help you keep your network running as smoothly and securely as possible.

  • Make sure to position it well: A standalone router or gateway should sit as close to the center of your home as possible and out in the open, but all routers and satellites should have as few obstructions around them as possible (especially metal ones). Try not to stick them inside a desk, behind your computer monitor, or way back in a corner.
  • Update the firmware: New firmware updates can improve your router’s performance, add features, and, most important, fix security problems. Many recent routers install firmware updates automatically, but others don’t, so consult your router’s manual for instructions on how to check for updates and install them. If your router hasn’t received a firmware update in more than a year or two, it may be time to consider a replacement.
  • Change the default passwords: This means changing both the WPA2 or WPA3 passkey you use to connect new devices to the router and the administrative password you use to adjust settings and install firmware updates. The default passwords for each are usually printed on a label on the bottom of the router, and changing both reduces the risk of someone hopping on your network and using your internet or changing the settings without your permission.
  • Reboot your router and modem: If your router or gateway regularly drops connections or can’t access the internet at all, turn it off or unplug it, wait 10 seconds, and then turn it back on (do the same with your modem, if you have a separate one). It’s totally normal to need to do this every once in a while, but if you’re doing it every day, your router or modem may need to be repaired or replaced.

Footnotes

1. One possible exception is if you have a cable bundle that also includes landline phone service. “Telephony” or eMTA modems cost more than regular modems and are less widely compatible, and your ISP is unlikely to allow you to bring your own anyway.
Jump back.

Mentioned above

  • We’ve researched nearly 100 cable modems over the past five years. Here’s what we recommend if you want to stop paying your ISP a modem rental fee.The Best Cable Modem
  • We’ve tested the latest Wi-Fi routers to find the best ones—from budget options to top of the line—to make your wireless network faster and more responsive.The Best Wi-Fi Routers for 2023
  • If a normal router can’t provide reliable wireless access to every corner of your home, mesh systems should help you stream and watch TikTok without a hitch.The Best Wi-Fi Mesh-Networking Kits
  • If you have rooms where 4K streams don’t work or browsing is too slow, you might solve the problem with a Wi-Fi extender—without replacing your whole network.The Best Wi-Fi Extender and Signal Booster

Further reading

  • All 315 Wirecutter Budget Picks

    by Annam Swanson

    We’ve made more than 300 budget picks across our catalog of product reviews. Read on for the full list.

  • Should You Consider Target’s Made By Design?

    by Wirecutter Staff

    We tested seven of Target’s Made By Design kitchen tools and home goods against our picks to see if they’re worth also considering.

  • Why We Love the TP-Link Archer A7 Wi-Fi Router

    by Joel Santo Domingo

    The TP-Link Archer A7 is the best Wi-Fi router for those on a budget. It offers superior performance at a reasonable price.

  • Credit Locks vs. Credit Freezes vs. Fraud Alerts: What Are the Differences?

    by Louis DeNicola

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    Credit locks, freezes, and fraud alerts can help protect you against fraud, but each has its pros and cons. Find out which option is best for you.

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