Switch-to-Switch Cable Not Working 😳 But Switch-to-PC Works! | RJ45 Troubleshooting

🎙️ English Key Notes & Transcript

You've probably wondered at some point about how we make internet cables here, the cables we punch. Why do we stick to color coding here? Why not just do both sides the same? In this series, let's punch it here. If I'm using white‑green here, I'll use white‑green there too. That way my…. The internet will work. I used to think, why not just follow this? Why should I do it? I'll just set it up here. I thought the guy coming from outside would curse at me. Who did that? Anyway, here I found the logical answer. I didn't really know what could potentially happen in this situation, but today, I actually noticed one important thing that caught my attention. What do we do now when our internet cable breaks? Imagine you're on a 12‑storey building and your office spans every floor. Each floor has its own… Now here you have…. You set up a server room, and the server room is where all the cables come from. It goes into the switch, and if you're on the 12th floor, it goes up to the 12th floor. The cable runs from floor to floor, from room to room. Right? So we call that…. We call it an uplink. Now suppose you're in room 12 and heading to another room. In the middle, a mouse cuts the cable. Rig...