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    Powerline adapters - speed issue

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    • B
      bennyc
      last edited by

      I have a similar model here, also a AV500 (tl-pa4010p), I use them every now and then (lazy patching, allows me to temporary extend any network connection).
      I wouldn't put my money on it, but I think I would have noticed such sort of behaviour. When you say 'plugged into pfSense', what's on that end? (what is your HW?)

      Sure it isn't a wire-mapping issue? Laptops tend to be very forgiving (most do autoMDI-X), firewalls on the other hand…

      4x XG-7100 (2xHA), 1x SG-4860, 1x SG-2100
      1x PC Engines APU2C4, 1x PC Engines APU1C4

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      • R
        robina80
        last edited by

        I have a apu 1c board and then a cable between it and the powerline adapter and that was showing as 10megs on the main pfsense dashboard but as soon as i changed the cable its showing as 100megs

        the powerline can do up to 500megs but the pfsense can only do 10/100/1000 so it must downgrade to 100 as it cant do 500?

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        • J
          jasonlitka
          last edited by

          500Mbit/s isn't an Ethernet standard.  PowerLine devices that claim 500Mbit/s need to use a Gig-E port.

          I can break anything.

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          • R
            robina80
            last edited by

            So it should read 500 then as my devices are all 1 gig?

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            • J
              jasonlitka
              last edited by

              @robina80:

              So it should read 500 then as my devices are all 1 gig?

              No, if working correctly it should read 1Gbit/s because that is the link speed between you and the adapter, you just won't be able to transfer any more than 500Mbit/s because that is the maximum link speed between your powerline adapters.

              EDIT:  I just looked up the model you posted.  That adapter has a 10/100 port on it.  Your link speed should be 100Mbit/s, not 1Gbit/s, and your maximum throughput will be limited accordingly.  The 500Mbit/s on the box is pure marketing BS because you'll never come close.  If you're getting a 100Mbit/s link with the cable changed out then it sounds like everything is working correctly.

              I can break anything.

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              • B
                bennyc
                last edited by

                It should advertise gig speed if it is a gig nic, even though the real throughput will be less.
                But, to confirm you findings, I quickly plugged on into my APU1C, and it also settles on 100M(fd).

                No idea why…  ::)

                4x XG-7100 (2xHA), 1x SG-4860, 1x SG-2100
                1x PC Engines APU2C4, 1x PC Engines APU1C4

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                • J
                  jasonlitka
                  last edited by

                  @bennyc:

                  It should advertise gig speed if it is a gig nic, even though the real throughput will be less.
                  But, to confirm you findings, I quickly plugged on into my APU1C, and it also settles on 100M(fd).

                  No idea why…  ::)

                  Read my post above.  The model in question only has a 10/100 port on it.

                  I can break anything.

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                  • B
                    bennyc
                    last edited by

                    Hà. Good one… Missed your edit. You solved the mistery by reading the manual...  ;D

                    4x XG-7100 (2xHA), 1x SG-4860, 1x SG-2100
                    1x PC Engines APU2C4, 1x PC Engines APU1C4

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                    • R
                      robina80
                      last edited by

                      now i understand there BS marketing jargon , when they say AV500, the internface is only 10/100, so you will never ever see 500mbps speeds

                      should have really got the AV500 gigabit, least i would have got 500mbps out of them as the interface is a gig

                      i cant believe i have been had!!!

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                      • J
                        jasonlitka
                        last edited by

                        @robina80:

                        now i understand there BS marketing jargon , when they say AV500, the internface is only 10/100, so you will never ever see 500mbps speeds

                        should have really got the AV500 gigabit, least i would have got 500mbps out of them as the interface is a gig

                        i cant believe i have been had!!!

                        Doubt it.  Think of it like WiFi.  Your link speed may be 300Mbit/s but the odds of you getting more than 40-50% of that, even with line of sight to the AP, are pretty long.  The absolute best of the AV500 adapters are capable of about 250Mbit/s WHEN PLUGGED INTO THE SAME POWER STRIP.  They all drop to 60-80Mbit/s in more realistic residential scenarios.

                        If you really need networking over power lines then I'd suggest waiting a month or two for the AV2 MIMO adapters to start hitting the streets (based on QCA7500).  These should be branded as AV1000 or similar and should be capable of 2-3x the rate of older adapters and be able to maintain higher speeds in less optimal scenarios.

                        I can break anything.

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