Yes, I have completed a networking class recently. No, I will not stop asking networking questions. When I first signed up for internet, they gave me one of those cheap little Motorola modems. You guys know the one I'm sure. Later, I obtained an identical one of my own. So today I went to switch them out because we are paying 7usd a month to rent out there modem and I want to use mine instead. Then I thought of something though. When they first set me up with internet the guy obviously had to dial in to the ISP with the modem. I'm assuming that the ISP uses the modem's MAC to identify it. If that's the case, I'm also assuming that I couldn't just switch out modems without having to do other things. Perhaps I would need to contact the ISP? Or is there something I could do on my side to get it to work?