1. Change the router administrator password
This is different from the Wi‑Fi password. Use the router maker’s app or local setup page and replace the default administrator password with a long, unique one. Store it in a password manager.
2. Use WPA3 or WPA2 security
In the Wi‑Fi security settings, use WPA3-Personal if all your devices support it, or WPA2-Personal if not. Avoid WEP and open networks. Give Wi‑Fi a strong passphrase that is not used for another account.
3. Install router updates
Check the router app or manufacturer support page for firmware updates. Some routers update automatically; others need you to approve updates. Do not turn off power during a firmware update.
4. Create a guest network
Use a separate guest Wi‑Fi network for visitors and, when practical, for less-trusted smart-home devices. This reduces how much access they have to your personal computers and files.
5. Review connected devices
Look at the router’s connected-device list every few months. Rename devices you recognise and investigate anything unfamiliar. Change the Wi‑Fi password if you find a device you cannot identify.
6. Do not expose router management to the internet
Leave remote administration off unless you understand why you need it. If a setting is unclear, use the manufacturer’s official instructions or ask your internet provider—not an unsolicited caller.