Any way to tell if someone else is using my internet?

[JAW959]

My interbutts have been really slow lately, I assume someone else being on my network could contribute to that, any way to tell what computers are connected?

[Ad Bot]

[dkamm65]

If you mean stealing your WiFi, change your password.

[Smeeble]

If you have Linksys, as far as I know, only Linksys can detect if someone is using your internet.
Off topic: The other day, someone tried to connect to the internet with my connection on their Xbox 360...

[Nitramtj]

The several times I tried connecting to my neighbor's internet, media player tried syncing up with their computer or xbox... :s

[Ethan]

I used to steal my neighbors internet. Where our laptop was set up was really close to their house, and you could get a great stable connection. They had no password.