One of my friends came over the other day and logged onto our house router. for some reason it gave him the security access to ask him if he wanted to create a password for our internet system. we have never set up one before, it was an open connection. after this happened my roomate, Oliver, lost internet connection and cannot re-connect to our router. i tried typing in our new password (which our friend accidentally created) using the [control panel->networking->internet options->add network button]. still, it will not connect. We even had him come over and look at Oliver's computer to see if he could fix it. i have fought off viruses, got rid of mal-ware, but ive never dealed with internet connection issues lol. we are using a wireless connection. mine works fine because i am using a hard line. my other roomate can get connection via wireless as well, its just Oliver who cannot connect. Is there any ideas you guys have to help me figure out this problem?