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I'm experimenting quite a surprising slow internet connection on the Pi. I scrolled a lot through the web and I'm unable to figure out whether it's supposed to be that way or not: some people seem to get real GB Ethernet on their Pis while other don't (I read it can be due to the way stuff are soldered on some revs/versions of the board) and I still don't get why the difference, so I hopped someone would know the answer here so I can better understand and revise, if needed, my projects :-)

I already asked on Reddit but couldn't get a clear answer: some discarded the question, arguig that people keep complaining about the Pi's internet speed, while others just said I didn't need that much for my use-case (turning it into a multimedia platforme for Netflix, Youtube, RetroPi and RPG battlemaps), but those answers didn't gave and explanation so I'm still in search for that.

Informations:

  • I've got a Raspberry Pi 4 Model B Rev 1.4, and RJ45 cat 5e, 6, 7 and 8 to test with (none of them worked for GB ethernet on the Pi so it's not about the cable).

  • I've got optical fiber connection at 1Gbps on my PC (avergage 950 DL / 380 UL) so it's not about my provider.

  • No VPN are active (or anything else than normal connection).

  • My Pi, on the same conditions as my desktop PC, gets ~100 Mbps DL / 140 Mbps UL, so I guess there is something happening on the board but I read on several blog post that the soldering issues they had with the RPi3 (which capped ethernet connection due to USB wiring) were supposed to be solved on the RPi4.

  • I've got two RPi4 B: one is 4Gb ram and the other is 8Gb ram -- both have those limitations.

In the end, I'm trying to figure out if I was just out of luck and got 2 functionnal boards on which the Ethernet connection has issues despite being Pi4, or if there is just some config file I need to correct (Jeff Geerling seems to get a lot out of his RPi4!) or if I just should go for another sbc like Odorid N+ in order to get what I want from them.

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  • It depends heavily on how you are running your test; e.g. are your measurements taken on the amount of data written to the SD card? If so, you're not measuring Ethernet speed. Suggest you read some of these to understand how the testing is done.
    – Seamus
    Mar 17, 2022 at 1:20
  • @Seamus I was just using speedtest.net but I'll look more closely to your link, thanks. I just tried speedtest-cli and interstingly enough it states a 600 Mbps connection while their website says it's still at 80 Mbps… go figure ^^
    – Etsaf
    Mar 18, 2022 at 10:47

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