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Devolo Magic 2 LAN Triple Deliberately Throttled?

gandyalf -  
brupala Posted messages 111137 Registration date   Status Member Last intervention   -
Hello everyone,

Are the Magic LAN triples limited to 100 Mbit/s?

I have a Devolo Magic 2 LAN 1-1 connected to my fiber Bbox and it's showing:

Ethernet Connector 1: 1000 Mbits/s Full duplex
However, when I check the triple LAN, here’s what it shows: Ethernet:

Ethernet Connector 1: 100 Mbits/s Full duplex (it is connected to my Bbox Ultym TV 4K)

Ethernet Connector 2: 100 Mbits/s Full duplex (it is connected to my OLED 806 TV)

Ethernet Connector 3: 100 Mbits/s Full duplex (it is connected to my Onkyo amplifier just for upgrades)

In the cockpit, the triple connection shows: varies between 400 and 500 Mbits

But when I do a speed test on my TV, here's what I get (test done with only the TV connected to the CPL):
ping: 13.6ms
Download 89.12 Mbps
Upload 97.67 Mbps

I am therefore not exceeding 100 Mbps even though I'm on fiber, of course I will never get 1 Gb but here I am limited to 100 Mbps on the triple...

I am on a single floor, the outlets are far apart, my CPLs are directly connected through my outlets and not through power strips.

Is this limitation intentional?

Thank you for your help and advice

Configuration: Windows / Edge 101.0.1210.53

3 answers

  1. gandyalf
     
    Well, according to your feedback; and after checking via a manageable switch on the Ethernet port directly to my router, I regret to inform you that unfortunately, it is indeed the Ethernet port of my TV and my Bouygues Ultym fiber Bbox (the old white one, not the new black Wi-Fi 6 one) that are 100 Mbps and not 1000 Mbps. The powerline adapter is therefore not to blame.
    Too bad according to my speed test I will never be able to watch a movie in 8K via Ethernet 1GB on my stunning Philips Oled 806 4K (LOL).
    Fortunately, the Shield TV Pro is here and goodbye to the powerline adapter ^^

    Thanks for the help, friends :)
    1
    1. brupala Posted messages 111137 Registration date   Status Member Last intervention   14 440
       
      Here it is,
      it's getting clearer :-)
      Afterward,
      8K you can still wait and I'm not sure that there's a need for gigabit for that anyway...
      On the other hand, goodbye powerline adapters, that's a good idea, yes.
      We're talking about Wi-Fi 7 (802.11be) in 2 years, it should stick them in place, for those who can't stand a cable.
      1
  2. madmyke Posted messages 52304 Registration date   Status Moderator Last intervention   12 485
     
    Hello
    The Magic 2 are definitely not throttled, your issue must be somewhere else. I have them and I get 400 on the download (I don’t have fiber).

    Doing a speed test on a TV? Uh, can you explain to me how you do that?
    So I don't know what's happening but your issue is not with the Devolos, maybe check if they are up to date? Or if there’s an electrical disturbance on your outlets, that you are following the guidelines (no Devolo on a surge protector, etc.).
    Best regards

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    1. gandyalf
       
      Hello, my 2 devolos are updated with the latest firmware, and as mentioned in my first message, they are not on multiple devices either, according to the recommendations from Devolo that I have been following for years (the magic 2 lan 1-1 works very well as it has been providing me with 1000 Mbps for a long time; it's the new magic 2 lan triple that I installed that is limited to 100 Mbps, hence my question). For the speed test on a TV, you do it with the Speedtest app simply ;) Thank you :)
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      1. madmyke Posted messages 52304 Registration date   Status Moderator Last intervention   12 485 > gandyalf
         
        So I have no idea, I have the Magic2, I have the Wi-Fi (2 wired and 2 Wi-Fi) for over 2 years and I haven't encountered any issues, I've also had Devolo for at least 12 years without ever having a problem.
        So ideally, we should do a test, for example in the same room on the same electrical circuit, 2 different outlets and see how it goes, just on a duo, to deduce if the issue is present everywhere.
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  3. brupala Posted messages 111137 Registration date   Status Member Last intervention   14 440
     
    Hi,
    would they have dared to put a 100M switch on their multiport modem?
    That's bold, but realistic,
    powerline modems are more often closer to 100M than to gigabit in average throughput.
    At least it means less buffering memory to install.
    We should test with iperf between 2 ports of a triple ....

    --
    and ... There you go!
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    1. brupala Posted messages 111137 Registration date   Status Member Last intervention   14 440
       
      However,
      it's supposed to be gigabit
      After all, the TV and the amplifier may not necessarily be gigabit; they don't need to be, neither does a TV box, by the way.
      We should check this on a real manageable switch because these products don't really tell much about their networking capabilities.
      1
      1. gandyalf > brupala Posted messages 111137 Registration date   Status Member Last intervention  
         
        Yes, it’s supposed to be 10/100/1000 Mbps, which is why I'm questioning why it's capped at 100.
        I just tested my speeds on PC, then on Wi-Fi (this time with a speed test using the Shield Pro), and there’s quite a difference indeed:

        PC speed test:
        ping: 4 ms
        940.74 Mbps download
        507.86 Mbps upload

        TV speed test on Wi-Fi (5G band):
        ping: 8.6 ms
        354.73 Mbps download
        294.15 Mbps upload

        TV powerline speed test:
        ping: 13.6 ms
        Download 89.12 Mbps
        Upload 97.67 Mbps

        And I thought it would be better with powerline rather than Wi-Fi with a 2400 Mbps powerline, I don't understand.
        1
      2. brupala Posted messages 111137 Registration date   Status Member Last intervention   14 440 > gandyalf
         
        That was before,
        Powerline adapters have progressed less well than Wi-Fi, but that's normal; they don't have as much radio bandwidth available on their medium, the FM band is above, and there are amateur radios in the middle.
        Wi-Fi has hundreds of MHz to use compared to the few tens already used by powerline modems.
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