For the last year i have been using a linksys BEFSR41 router w/ Att broadband without any problems. Today when my little sister came home from school she was unable to acces the internet from her computer, and i couldnt acces the internet from my parents PC either. However, I can acces the network and the internet from my computer. Again, all 3 computers are hooked up to the router. Anyone have any ideas?