Here's my question: I have wireless connection to both my computers in my home. Our neighbor, who helps us out quite a bit, has a laptop. As a favor, he uses our signal, which is otherwise encrypted. I live in Fl. He went to Mich for the summer, taking his laptop with him. After some difficulty, he finally got a signal & was able to connect. (He doesn't know how that occurred). Now that he's back, his computer shows he's receiving my signal, but he's not able to connect to the internet. What could this be and how can we correct it? Could it be a changed IP address?