+ 2 Votes Several Things to Try sogorman74 2 years ago Backup your data to memory stick, external hard drive etc. Use a strong password to secure your router. Set up MAC address filtering Hide the SSID Format PC's/Laptops and reinstall Operating System and Applications (Maybe consider an opensource O/S such as Ubuntu or Linux Mint..) Install Antivirus Software/Firewall/Spyware Cleaning software or a security suite e.g. Avast, Zonealarm, Norton, Comodo, Spybot etc. Install and run Malwarebytes software and upload a log post reinstallation Change all your passwords for web based apps facebook, banking etc. Ensure that your kids aren't trying to drive you insane!