Issue with network cable speed and performance
Issue with network cable speed and performance
Hey everyone, I just moved into my apartment with my girlfriend last year. We have a solid 300 MBit/s internet connection in the basement. There, the fiber is converted into an Ethernet setup using an ISP box. I brought our router, laptop, and two CAT 7 cables down there to test it out. In the basement, we found a network wall socket and another on the first floor. A CAT 6 cable links these two sockets together. Inside the apartment, we experience an unstable connection ranging from 50 to 150 Mbit/s using the same router, laptop, and CAT 7 cable. So the issue seems to be with the CAT 6 cable between the basement and the apartment. It’s strange because the connection isn’t completely lost, yet it’s so unreliable. To achieve a stable 300 Mbit/s, we connected a longer CAT 7 cable (about 25 meters) through the stairwell from the ISP box to the router, and it worked perfectly. But that’s not how things are done—our landlord prefers it. He brought in an electrician named Cable Clutter Joe. He checked all the connections and confirmed they were fine. I showed him that we’re not getting full bandwidth, and he suggested a DIY fix: a box with a round cover, a standard cable without sockets, and a socket-to-socket adapter. It’s a bit of a joke, but as an electrical engineer, I couldn’t help but laugh. The setup looks messy, but it functions. Unfortunately, I’m not very experienced with networking, so what do you all think? Could sockets really be the problem for high speeds? Was the cable damaged somehow? CAT 6 should handle 300 MBit/s, right? His boss is going to send him over today to sort this out. Honestly, it’s Cable Clutter Joe’s job, but after seeing his idea, I’d be happy to help fix it.
It handles up to 1 Gb/s for distances under 100 meters, matching CAT5e performance. Usually, avoid adding extra jack points for a single run unless necessary. In reality, this shouldn't cause issues. Also, keep Ethernet cables away from power cables—damage can occur, but more common problems are loose connections or poor crimping.
It's important to note that the color sequence isn't uniform across all systems; there are established guidelines. Many electricians overlook this detail, treating connections as if they were standard power wires. Using a basic network cable tester can assist in identifying these problems.
The distinction between TIA-568A and TIA-568B appears to involve exchanging the orange and green twisted pairs. Mixing standards might result in half the twisted pairs connecting properly, which could affect bandwidth expectations.
Using this method creates a crossover connection, which isn't required. Opt for a single standard on both ends. The 'B' standard is currently most common. I'd just swap it for a fresh Cat6/6A Ethernet cable with correct connectors at each end. It's likely time for an upgrade overall, helping avoid future issues. Use the old cable as a reference while installing the new one.