[YOHAN]

How do I put a password for my wifi connection? Right now, everyone can just connect!!! Heck no am I that kind on my internet connection!!! heheheh.

D-Link wifi router.

[KnowItAll]

You need to login and setup the security to support WEP or WPA.

Look for either of those two terms in your manual or google it.

Essentially that generates a key that you will need to enter into your client (Windows) settings for the WiFi connection.

[PDLM]

Another method would be to set up a MAC address "white list" - only allowing certain pieces of hardware to connect to your network.

[discobay]

Set up an authorised MAC list - it's the most efficient way of controlling access to your wireless network.

[kai920]

At bare minimum, I would use a combination of WEP encryption, MAC filter list, and disabling broadcast of your SSID.

Maybe this will help?

[penguinsix]

Actually, let them login and then access their files, if they are dumb enough to have sharing enabled.