I live in a house with two other college students. We have cable internet running on a Linksys WRT54G. One of my roommates set up the wifi with an easily guessed/socially engineered password. A month ago he mentioned that someone had disabled the security on the wifi, and asked if I knew anything about it. I hadn't done anything, he told me that he set the wireless network to Hidden. The name of the network? The password that was easily breeched.
All of a sudden, the network is no longer hidden and the name has changed to Network 5. Furthermore, my speed has dropped from 25 Mbps to 0.5 Mbps randomly during the day. What's really got me concerned is the fact that I can't access 192.168.1.1 like I used to. Firefox gives me a "connection was reset" error page, and IE gives me a generic "Page can not be displayed." This is the IP I used before to check in on the router (oh yeah, he never changed the admin password).
Does anyone have any idea what's going on?