Understanding Your Home Network

Learn what modems, routers, and Wi-Fi extenders do and how to optimize your home network.

In this guide (7 steps):

1.Modem vs router
2.Wi-Fi bands explained
3.Optimal router placement
4.Ethernet vs Wi-Fi
5.Wi-Fi extenders and mesh systems
6.How many devices is too many?
7.Check what's connected

Modem vs router

~15s

The modem connects your home to the internet (from your ISP). The router creates your Wi-Fi network and connects your devices. Some devices combine both into one unit (gateway).

Wi-Fi bands explained

~15s

2.4 GHz: longer range, slower speed, travels through walls better. 5 GHz: shorter range, faster speed, best for streaming and gaming nearby. Wi-Fi 6E adds 6 GHz for even faster speeds.

Optimal router placement

~15s

Place your router centrally, elevated (shelf height), away from walls and metal objects. Don't put it inside a cabinet, near a microwave, or on the floor. Central placement gives the best coverage.

Ethernet vs Wi-Fi

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Ethernet cables provide faster, more reliable connections. Use ethernet for desktop computers, gaming consoles, and smart TVs when possible. Wi-Fi is for mobile devices and convenience.

Wi-Fi extenders and mesh systems

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Extenders repeat your signal but halve speed. Mesh systems (Google Nest WiFi, Eero, TP-Link Deco) are better — they create one smooth network with multiple access points.

How many devices is too many?

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A typical router handles 20-30 devices. Count all connected devices: phones, tablets, computers, smart TVs, smart home devices, thermostats. If you have 30+, consider a newer Wi-Fi 6 router.

Check what's connected

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Log into your router (usually 192.168.1.1) or use the Fing app (free) to see all devices on your network. Remove any you don't recognize and change your password if needed.

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You've completed: Understanding Your Home Network

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