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Lock Down Your Home Router in Twenty Minutes

Updated November 7, 2026 · Written by the DefensiveInfo editorial team

Your router sits between every device in your home and the internet. A few changes make it much safer.

Sign in to the settings page

The address and default login are often printed on a label on the router. If you have never changed them, now is the time.

Change the admin password

The router has two passwords: one for Wi-Fi and one for its settings. Replace the default settings password with a strong, unique one.

Choose modern encryption

Pick WPA3 if all your devices support it. Otherwise use WPA2 with AES. Avoid WEP and open networks with no password at all.

Use a good Wi-Fi passphrase

Set a long phrase that is unrelated to your name or address. Change it if you have shared it widely or if an old guest might still have it.

Keep firmware current

Manufacturers fix security flaws through firmware updates. Enable automatic updates if offered, or check every few months. If your router no longer receives updates, plan a replacement.

Switch off what you do not need

  • WPS push-button setup.
  • Remote management from outside the home.
  • Universal Plug and Play, unless a specific device needs it.

Create a guest network

Put visitors and smart gadgets such as cameras, speakers and televisions on a separate network. If one of them is compromised, your computers stay out of reach.

Look at who is connected

Your router's device list shows every connected gadget. Anything unfamiliar is a reason to change the Wi-Fi passphrase.

Placement and restarts

Put the router in a central, open place for better coverage. A restart now and then clears minor glitches, but if you need to restart it weekly, it may be failing.

This guide is general information, not professional advice. Menus, features and prices change between versions and regions. See our disclaimer.