How to see who is on your network?

Why don’t you add a password to your network?

Well, if you know the IP address of your router (wireless box) you can probably view the history of the computer name or IP address, and the website they visited right withing the browser. Just figure out that IP and visit it in your browser.

Another security measure to take is to hide your network and change the name, so that only people who know the name of the network can join (or enter the password for that matter). I walked around my neighborhood and found 8 Linksys networks, they hadn’t even been renamed! Amongst hundreds, only a few of the networks were password protected.

When you catch the culprit, then what?

Far better:
http://www.google.com/search?hl=en&q=how+to+secure+your+wireless+AP&btnG=Google+Search

Far better:
http://www.google.com/search?hl=en&q=How+do+I+see+what+web+pages+my+roommates+are+looking+at&btnG=Google+Search

I would say to put a password on your network.. however I do remember seeing something on tech tv once that allowed you to leave your network open and the person using it would receive a pop-up letting them know that you knew they were on your network, but unfortunately I cant remember the name of the software. But i’d suggest making ot password secure and tell few people (if any) the code.

Password protecting your network is a good start. Make it a difficult password for others to guess.

This article should also help you.

http://www.wikihow.com/Tell-If-an-Outside-User-Is-on-Your-Wireless-Network