I want gigabit speeds, but the best I can get is only 12mbps. I am transferring from my computer over a gigabit Ethernet (Built-in Realtek adapter) on an Asus motherboard (I checked the specifications and it's gigabit) through a Cat 5E cable to a Netgear WNDR4500 router and then to a WD Live TV hub. My desktop plays all the latest games at the maximum settings with no problems, and my hard drive is 7200 RPM. All my firmware and hardware drivers are up to date. So what am I doing wrong here?