locking my computer

[WIGGLE19]

How can I make sure no-one can use my broadband, as I went onto kids dsi, and looking for a connection, all around were named with a lock against them, but my lock was open, and I believe people are using my broadband, as it's running slow, and is jumping!

[Ethel]

What sort of router do you have?
You need to access the admin and set up pages of your router, preferably while plugged in to the router by ethernet cable, and go through the security.

Routers have different page layouts, so there is no simple answer without more information.

To access the admin page, after connecting by ethernet, you need to type the router address in the address bar at the top of the screen. It is often 192.168..0.1.

This gives instructions for one type of router http://resnet.uci.edu/routersetup.asp

You should have similar instructions for your own.

[johnpol78]

how you connect the connection to the computer.
Did you connected the computer to the router.

use the strong password.
block all the computers except your computer.