Slower cable connection via ceiling wiring Issue with reduced internet performance through ceiling cables
Slower cable connection via ceiling wiring Issue with reduced internet performance through ceiling cables
Hi everyone, I just got a 1Gb internet connection and was really thrilled. But I experienced slow speeds on my second floor. Let me explain what happened. Initially, I set everything up as it was before—there’s a cable running through the ceiling to a switch, then from the switch to my PC and TV. I only managed about 93MB/s. I checked my cable and confirmed it was Cat5, which should support up to 100MB/s according to the manufacturer. That made sense at first. So I upgraded to a 10-meter Cat7 cable and a 3-meter Cat7 cable. Before running them through the ceiling, I tested all cables, including the switch, and got around 750MB/s—perfect performance. Then I ran the new cable upstairs and used a Cat6 connector on the 10-meter one because the original connector didn’t fit through the pipe. I read online that Cat6 and Cat7 connectors are interchangeable. After connecting everything again, I was still getting only 93MB/s. That’s puzzling. I’m sure the connection was correct, but why is the speed so low? Anyone have any suggestions?
Verify the network speed on Windows and provide a summary. Cat 6 and 7 connectors are identical but could indicate a faulty connection or an unstable link. The device appears to be behaving oddly, possibly slowing the connection to 10/100 Mbps. The purchased cable may not meet the required Cat 6 specifications.
It seems you're comparing devices with different measurement settings. Make sure you're using consistent units—bits versus bytes. A speed of 750Mbps equals about 93.75MB per second. Remember, bits and bytes are different (1 byte = 8 bits). Double-check your units to avoid confusion. Using a CAT5E cable should work if you're correct.
I tested with a laptop running Ookla Speedtest. My speed dropped from 750 Mbps to just 93 Mbps on the same machine. The images show me achieving 650 Mbps when directly connected to the modem and 94 Mbps upstairs. I’m using a Cat7 cable.
Only the connector changed, not the rest. I put it on one cable and made a duplicate for the other. The way the cables are arranged inside the new connector matches what was in the original.
The changes between testing at lower speeds and achieving gigabit performance after moving to sub-100m/bit likely point to either cable termination issues or external interference. You've already attempted retermination—check if you're adhering to the new pin-out guidelines for the end connection. Consider terminating the unused short cable and retesting with it (still unloaded) to confirm proper setup. If gigabit works with a cable you tested earlier but isn’t properly routed, interference is probable. Identify nearby sources like fluorescent lights and either change their path or use shielded cabling.