I changed 4 Windows settings and my Ethernet speed finally matched my cable
After unboxing and neatly connecting my new premium Cat6a cable, I expected the internet speed to be blisteringly fast. However, I got sluggish downloads. I had ping spikes at the times when I was hoping for stability. What I realized was that on modern Windows 11 builds, premium hardware isn’t the only determining factor for maximum throughput. Windows is designed to prioritize green energy initiatives, and these settings, buried deep within Device Manager, can affect network performance. In trying to save microwatts of power, my system was throttling my connection. Once I fixed it, my Ethernet speed was predictable and as fast as I expected. The cable wasn’t the problem. Windows had already decided how to handle my connection Afam Onyimadu / MUO Ethernet connection problems are typically blamed on cables, the ISP, or the router. But as soon as I had ruled out these three, I started digging through Device Manager, where the first answer was hiding. By default, Windows had enabled Energy Efficient Ethernet. This feature is built on the 802.3az standard and …









