So I moved in with in-laws and they have a AT&T wireless dsl modem. The main desktop is hardlined and they have a laptop that is wireless. I have a desktop with a external wireless usb. The network is wep shared and I couldn't connect. I turned it to wep open and then I could. Now I found out that the laptop does not have internet now. Turned it back to wep shared and laptop works again now mine doesn't. How do I get it to where both work?!?! All computers are Dell Xp home edition sp3. Laptop has built-in wireless card.