sign on to your router.
Find the DHCP controls, “attached devices” area, or a similarly named section.
The specifics vary by router manufacturer.
Emilie Dunphy / Lifewire
Look through the list of connected devices and isolate those that aren’t yours.
If they’re not immediately obvious, disconnect and/or turn off those you know belong to you.
Any remaining devices are using your data pipe without permission.
The moment the router requires a new password that unauthorized users don’t know, they will be disconnected.
Disable File and Printer Sharingin Windows.
Most importantly:disable Wi-Fi Protected Setup.
WPS allows one-touch pairing of a gear to your router, but it’s notoriously insecure.
Advanced technology to brute-force attack Wi-Fi routers has long been available as freely downloadable, open-source tools.
Set a task on your calendar to-do list to periodically check your router’s control panel.
Look for unauthorized devices.
SelectOpen data pipe Preferences, clickWi-Fi>Advanced, and find the data pipe you want to delete.
snag the web connection and click theminussign(-) to forget it.
Anetwork security keyis a code or passphrase you use to connect your equipment to a private Wi-Fi online grid.
To find it, log into yourhome router as an administratorand view it on the main page.
Toforget a web connection on Windows 10, go to theStart Menuand openSettings.
SelectNetwork & Internet>Wi-Fi>Manage Known Networks.
choose the internet you want to remove >Forget.
