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Hidden Ethernet Failures That Don’t Show Up in Speed Tests

  We rely on speed tests like a doctor relies on a thermometer. It is the first tool we grab when the internet feels "sick." You open a browser, click "Go," and watch the needle spin. If the number comes back high—say, 900 Mbps on a Gigabit connection—you sigh in relief. The internet is fine. The problem must be Zoom, or the game server, or just a glitch. But here is the uncomfortable truth: A speed test is a very shallow diagnostic tool. It measures  throughput  (how much data can be pushed through the pipe in a short burst), but it completely ignores  stability ,  latency ,  power delivery , and  physical integrity . It is entirely possible to have a cable that passes a Gigabit speed test with flying colors but still causes your security cameras to reboot, your VoIP calls to sound robotic, and your file transfers to corrupt. These are "phantom" failures—issues that lurk beneath the surface of a simple bandwidth check. In this guide, we will uncover t...

Why Signal Integrity Matters More Than Speed Ratings in Ethernet Cables

  We live in a world obsessed with big numbers. When you shop for a new router or sign up for an internet plan, the first thing you look at is the speed: 1 Gigabit, 5 Gigabits, 10 Gigabits. We naturally assume that "more is better" and that a higher number automatically equals a better experience. However, in the world of physical networking, speed ratings are only half the story—and often, they are the less important half. A speed rating is just a theoretical limit. It tells you how much data  could  travel down the wire under perfect conditions. But real-world networks rarely operate in perfect conditions. They operate in walls filled with electrical noise, across ceilings with fluorescent lights, and over distances that test the physics of copper. This is where  Signal Integrity  comes in. Signal integrity is the measure of how "clean" the data is when it arrives at the other end. You can have a cable rated for 10,000 Mbps, but if the signal integrity is poor...