How to Stop Strangers Joining Your Home Network

Your home Wi-Fi network is like a digital fence around your property. You wouldn't want strangers strolling into your backyard, and you shouldn't want them on your Wi-Fi either. This guide will help you set up your router so only *you* decide who gets to connect.

Change the Default Password

Your router came with a standard username and password, often printed on a sticker on the device itself. Attackers know these common defaults and can use them to easily access your network. Changing this immediately is the first and most important step to securing your Wi-Fi.

• Look for a sticker on your router for the default username and password.
• Type your router's IP address (often 192.168.1.1 or 192.168.0.1) into your web browser.
• Log in with the default details.
• Navigate to 'Administration', 'Management', or 'Settings' to find the option to change the password.

Enable Strong Encryption (WPA3 or WPA2)

Encryption scrambles your Wi-Fi signal so that only devices with the correct key (your Wi-Fi password) can read it. WPA3 is the newest and most secure option, but WPA2 is also very strong. Avoid using WEP or older security types, as they are much easier for others to break into.

• Log into your router's settings via a web browser.
• Look for 'Wireless Settings', 'Security', or 'Wi-Fi Encryption'.
• Choose 'WPA3 Personal' if available. If not, select 'WPA2 Personal (AES)' or 'WPA2-PSK (AES)'.
• Save your changes and reconnect all your devices using your new, strong Wi-Fi password.

Use a Strong, Unique Wi-Fi Password

Your Wi-Fi password (sometimes called a 'passphrase' or 'network key') is the gatekeeper to your network. Make it long, complex, and memorable, but secret. Avoid using personal information or easily guessable phrases.

• Aim for at least 12 characters.
• Combine uppercase and lowercase letters, numbers, and symbols.
• Consider a passphrase: a string of unrelated words that's easy for you to remember but hard for others to guess (e.g., "PurpleCloudDancingBanana!").
• Avoid using dates of birth, pet names, or common dictionary words.

Consider a Guest Network

Most modern routers allow you to set up a separate 'guest network'. This provides internet access to visitors without giving them access to your main network, where your computers, phones, and smart devices are connected. It's like having a separate waiting room for guests.

• Access your router's settings page.
• Find 'Guest Network', 'Separate Network', or 'Visitor Access' options.
• Enable the guest network and set a different password for it.
• Limit guest access to the internet only, preventing them from seeing other devices on your main network.

Disable Wi-Fi Protected Setup (WPS)

WPS is a feature designed to make connecting new devices easier, often with a button push or short PIN. While convenient, it can be a security risk as some older implementations have weaknesses that can be exploited by attackers to guess your Wi-Fi password. It's generally safer to disable it.

• Log into your router's administration page.
• Look for 'WPS', 'Wi-Fi Protected Setup', or 'Quick Connect' under your wireless settings.
• Select 'Disable' or 'Turn Off' WPS.
• Save your settings and restart your router if prompted.

Key takeaway

By taking these simple steps, you