So I bought a Cat5e ethernet cable and I tried to hook it up. At first it seems well and I noticed my speed was capped at 100mbps instead of the 300 I pay for. I get that I won't always get what I pay for, but on my phone and laptop I get over 200mbps. I thought it was the cable itself so I went and got another one, but no luck there. It still caps at 100. I just thought it was a motherboard problem, (I have a Dell Prebuilt and it said it had gigabit networking, so I downloaded a driver from the dell website and I installed it, but nothing. I tried to set the Speed&Duplex to 1.0 Gbps, but that just disconnects my ethernet driver and makes it appear that no ethernet is installed. The Motherboard is a Dell 08WKV3. Thanks in advanced!