Usually when I plug an ethernet cable into my computer, the cable/port starts blinking. I just got cable internet and for some reason when I plug the ethernet cable into my sister's 5 year old computer it doesn't blink and I get no internet signal. I don't think this is the ethernet cable or port's problem because I can go online using DSL with no problems, and I've tried a lot of ethernet cables. The technician claims that Verizon planted an IP address in my computer, saying I have to get that address and reverse it. Now, I'm not the biggest computer genius around, but what he said really makes no sense to me at all. Could someone shed some light? My mom wants as little cables running around the house as possible, so I'm forced to go wireless. I have to set up the modem and router on my sister's computer before being able to go wireless, and it simply won't work.