Hello there! I recently installed a new version of Windows 7 Ultimate 64-bit version. The thing is I am having trouble obtaining an IP address using DHCP, however, I can connect using a fixed IP address. Windows is set to default to 169.X.X.X address and subnet mask of 255.255.0.0. The machine I am using has all the latest patches and its license is fully registered. Do you have any idea what could have happened to my system? I am looking forward to your response. Thank you.