My mac pro just starting assigning its own ip, 169....something or other, and now I cannot access the internet. I searched and read the entire giant thread about this issue, and tried all the proposed fixes, and none of them work. I have a linksys router plugged into the wall, from which I have an ethernet cord plugged in the back (I dont have a wirelss card in the mac pro). The router in my room isnt connected to the modem, it picks up the wireless sent from the downstairs router which is (basically its a giant wireless card externally). THe internet works fine for every other computer in the house. I rebooted in Windows Vista Business and did all the fancy ipconfig commands I could, that didnt work either. Does anyone know any other solution to this issue. I would be pretty pissed if my internet just randomly bricked on my $4000 machine. Thanks in advance for any help!