Just moved in with a friend she has cox high speed internet with a wireless router. Per PC is pluged directly into the router and has a laptop she uses wireless. I have a laptop and a PC with a antenna, they both pick up her signal, put in password, and it says connected with little or no connectivity. I have reset the modem and it neither will pick it up. Hers is working fine. What do I need to do? I have reset the router and my pc and laptop, they recognize the wireless network, and it is apparently connecting but not pulling a i.p. address.