How to Block other users from accessing the internet using your Modem

Hmmm... So it's 1 dsl modem networked to two computers? right? You can try this.. Look on the bottom of the modem for the modems ip. Type that into a browsers address bar. -If it ask for a username and pass.. try these defaults. u: admin p: admin u: admin p: epicrouter u: root p: 1234 Now look at the settings for any ways to block an ip or a mac address. and might want to change the default pass so you won't get the same thing done to you. :-) * If that's a wireless(wifi) modem ,you can just turn on encryption & set an access pass. Caution: Blocking a brothers ip from the net may result in a family conflict. lol :D It would be best to work out some sort of time frame deal. ;-)

i think you should put passwords when using your wifi connection so others won't be able to use it.. you can also use some softwares that controls the flow of your connection so you know who is using your internet connection..