Whenever I use my MBP we have to reset our router from time to time.... I'm pretty sure its the MBP that's causing the problem, b/c after not using it for the last two weeks, there hasn't been a problem with the router... I was wondering if there is an IP conflict issue... I have 3 computers, 2 PCs one wired the other wireless, and my MBP.... I know for my PC I was able to to assign a fixed IP address. This helped with port forwarding and P2P software. I find with my MAC the IP address changes every once and a while, and I have to change the ports for port forwarding. So my questions are how to I assign a fixed IP for my MBP? Could assigning a fixed IP to my MBP resolve my router issues?