Securing a home network against common threats involves several key strategies:

1. **Change Default Settings:** Immediately change the default usernames and passwords on your router and other devices. Use strong, unique passwords combining letters, numbers, and special characters.

2. **Update Firmware and Software:** Regularly update the firmware of your router and all connected devices to protect against vulnerabilities. Enable automatic updates where possible.

3. **Use Strong Encryption:** Enable WPA3 encryption on your Wi-Fi network. If WPA3 is not available, use WPA2. Avoid using outdated protocols like WEP.

4. **Set Up a Guest Network:** Create a separate guest network for visitors. This keeps your main network more secure by isolating guest devices.

5. **Disable WPS and UPnP:** Wi-Fi Protected Setup (WPS) and Universal Plug and Play (UPnP) can create security risks. Disable these features if they are not necessary.

6. **Enable Network Firewalls:** Use the firewall built into your router and consider installing additional software firewalls on your devices.

7. **Monitor Connected Devices:** Regularly check the list of devices connected to your network and remove any unfamiliar or unauthorized devices.

8. **Use a VPN:** Consider using a Virtual Private Network (VPN) to encrypt your internet traffic and protect your privacy.

9. **Secure IoT Devices:** Change default settings on Internet of Things (IoT) devices, use strong passwords, and keep their firmware updated.

10. **Educate Household Members:** Ensure everyone in your home understands basic cybersecurity practices, such as recognizing phishing attempts and avoiding suspicious downloads.