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I have set up a basic FTTH in my home I have:

  • 150 Mbps Connection
  • Mi Router 4A Gigabit
  • TP-Link Gigabit Switch (5 Ports)
  • Tenda Cat6 Cable

My Router sits 131 Feet away from my laptop if I connect with or without a switch to my laptop with a patch cable like 1 foot I get the full bandwidth of around 150 Mbps but when I connect to my patch which is 131 feet away I get 100 Mbps, I tried crimping cat 6 connectors but no fun, so I want to ask do I need to buy a new router which supports it? I'm not sure which router will help in that case. Secondly, I followed the T-568B method to clip the connectors.

At this point it's clear to me that either ethernet does not support this kind of long-range for a gigabit port rather it slows down to 100 Mbps or my router does not support or does not have the energy to travel the signal at that speed.

Please guide.

Thanks

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    CAT6 should absolutely support a 40 meter run. There is something else going on which you have not identified.
    – Ramhound
    Nov 13, 2022 at 19:33
  • Did you use CAT6 connectors too?
    – LPChip
    Nov 13, 2022 at 20:36
  • "clip the connectors" -- That would be crimp not "clip". "when I connect to my patch .." -- What exactly is this "patch"? UTP and STP cable must not be treated like rope. Avoid twisting, kinking, or pulling on the cable. An abused/damaged cable can/will have degraded performance as you report. Have you abused your cable at all?
    – sawdust
    Nov 14, 2022 at 0:51
  • one note op, traditionally, b means bit. and B means byte. Gigabit (1000mbps) generally tops out at a 125 MegaBytes/s, whereas 100mbps can reach about 12 MegaBytes/s. So which of your measurements are megabits and which are megaBytes?
    – Frank Thomas
    Nov 14, 2022 at 2:49
  • @Ramhound yes that's what I'm looking into.
    – Saif Ali
    Nov 14, 2022 at 5:35

1 Answer 1

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Twisted-pair Ethernet generally supports up to 100 m. According to standard, 90m need to be stiff, solid-core cabling, and up to 10m flexible, stranded patch cable. Using decent cabling, you can normally get away with 30-50m patch cable as well.

If your installation only works for short distances and links down to 100 Mbit/s or fail to link altogether, check:

  1. discontinuity: 1000BASE-T requires all four pairs to work
  2. mismatched pairs: cables need to be kept in their original pairing; swapping conductors between pairs severely increases crosstalk - if you can't make out the original pairs remove more of the outer sleeve
  3. mismatched connectors or tooling: make sure the connectors you crimp are suitable for the cable type and gauge
  4. do not overdo or underdo the twisting rate: try to preserve the original twisting rate and direction of the cabling - failure to do so increases attenuation and decreases reach
  5. if there's a shield, it needs to be properly grounded on both sides - alternatively, consider UTP
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