What is a router and what does it do?

Internet Basics
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A router is a networking device that directs traffic between devices on a network and other networks, including the internet.

In most homes, the router serves as the central hub that connects computers, smartphones, tablets, smart TVs, gaming consoles, and other devices to the internet. Many modern routers also provide Wi-Fi connectivity, allowing devices to connect wirelessly.

When a device sends or receives information, the router helps determine where that data should go. This process happens automatically and continuously behind the scenes.

Although routers are common in homes and businesses, many users interact with them daily without fully understanding their role in keeping devices connected.

If you’d like to learn more about routers and home networking, check out the related resources below.

Key Takeaways

  • Routers direct network traffic between devices and networks.
  • Most home networks rely on a router.
  • Many routers also provide Wi-Fi connectivity.
  • Routers help devices access the internet.
  • Routers play a central role in home and business networking.

Related Resources

Related Community Discussions

Discussion Questions

  • How long have you had your current router?
  • Have you ever upgraded a router to improve performance?
  • What features are most important to you when choosing a router?
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One common source of confusion is that many internet providers supply devices that combine multiple functions into a single piece of equipment.

For example, a device may function as a modem, router, Wi-Fi access point, and firewall all at the same time. This can make it difficult to understand which component is responsible for a particular task.

Understanding the role of a router can make troubleshooting network issues much easier.

Have you ever logged into your router to change settings or troubleshoot a problem?

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Over the years, I’ve learned that many internet performance issues people attribute to their provider are actually related to equipment inside the home.

Routers do a lot of work behind the scenes, and understanding their role can make troubleshooting much less frustrating.