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My PC does not detect my Ethernet cable

UnRandomSurTerre Posted messages 9 Status Member -  
brupala Posted messages 111142 Registration date   Status Member Last intervention   -
Hello, I just set up my PC, but following a friend’s advice, I didn’t order a network card or a Wi-Fi dongle because it’s more convenient to use Ethernet. I powered on this PC for the first time with the HDD from my old PC, I plugged in my Ethernet cable and no Ethernet icon appears at the bottom right, my PC isn’t detecting it. I've been using powerline adapters for a few months and it has always worked. HELP please.

8 answers

  1.
    brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442
     
    Hello,
    probably just a driver to install for the ethernet card, it's very common.

    --
    and ... There you go!
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    1. UnRandomSurTerre Posted messages 9 Status Member
       
      I installed the LAN drivers for my motherboard and installed it with a USB stick on my PC, and an error message appears: The Realtek Network Controller was not found. If Deep Sleep Mode is enabled, please plug in the cable.
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  2. SlimWalker
     
    try Drivers cloud
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    1. UnRandomSurTerre Posted messages 9 Status Member
       
      I don't have a Wi-Fi card either, which means I have 0 Wi-Fi on my PC. Do we need Wi-Fi to perform the driver scan? Where can I install it on my other PC and transfer it via USB key?
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  3. kaneagle Posted messages 86285 Registration date   Status Moderator Last intervention   14 682
     
    Hello,

    Shut down the computer
    Unplug it from the wall socket
    Wait about 5 minutes
    Plug it back in
    Start the computer and see how it goes.

    --
    Human beings are at their best when things are at their worst.
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    1. UnRandomSurTerre Posted messages 9 Status Member
       
      Okay, I’ll give this a try. Will it really make a difference?
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    2. UnRandomSurTerre Posted messages 9 Status Member
       
      I just realized that in Device Manager I don't have my network card, but in "Other devices" I have 4 unknown PCI devices with a yellow triangle next to them.
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    3. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442 > UnRandomSurTerre Posted messages 9 Status Member
       
      Give the identifiers of these cards to Kaneagle here, he should get something out of it.
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    4. UnRandomSurTerre Posted messages 9 Status Member
       
      Here are the 4 "other unknown devices" in
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    5. UnRandomSurTerre Posted messages 9 Status Member
       
      I did what you said but still nothing.
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  4. epango Posted messages 37195 Registration date   Status Member Last intervention   Ambassadeur 4 270
     
    Since it's a PC you've just assembled, it would undoubtedly be useful for you to detail its composition.

    --
    Misnaming things adds to the misery of the world (Albert Camus)
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    1. UnRandomSurTerre Posted messages 9 Status Member
       
      MSI B550m Mortar
      RX 5700xt
      Ryzen 7 2700x
      600w power supply
      32 Go RGB RAM 3200 MHz from Corsair
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      1. epango Posted messages 37195 Registration date   Status Member Last intervention   4 270 > UnRandomSurTerre Posted messages 9 Status Member
         
        I would have thought it was a compatibility issue between the motherboard and the CPU, as the Ryzn7 2700X is not listed among the compatible CPUs for this motherboard:

        https://fr.msi.com/Motherboard/support/MAG-B550M-MORTAR#support-cpu

        However, it works, except for the network card, which isn't even visible in the device manager. You might want to consider that you could have received a defective motherboard. In that case, you should consider an exchange.
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  6. kaneagle Posted messages 86285 Registration date   Status Moderator Last intervention   14 682
     
    If the problem persists:
    Try a USB Wi-Fi adapter
    Update Windows 10:
    Download this -->> MediaCreationTool20H" <<--
    Run it
    Check --> Upgrade this PC now

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  7. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442
     
    Arf,
    a 2.5 Gbit/s card connected via powerline adapters... that's amusing.
    You have to keep yourself entertained during these times.
    It's kind of like a Ferrari on the Paris ring road at 6 PM.

    --
    and... Voila Voilou Voila!
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    1. epango Posted messages 37195 Registration date   Status Member Last intervention   4 270
       
      What is incongruous about plugging a powerline adapter into a 2.5Gbit/s Ethernet port? We're using a 1Gbit/s Ethernet port to connect to an ADSL modem that can't even reach 10Mbit/s!
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      1. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442 > epango Posted messages 37195 Registration date   Status Member Last intervention  
         
        With Powerline adapters, we can reach 300 Mbit/s at full speed in downloads.
        The ADSL modem is one thing, but it's not the only connection in a local network; we can communicate at 1 Gbit/s between two PCs, for example, a NAS and a PC, without being limited by the ADSL connection.
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  8. epango Posted messages 37195 Registration date   Status Member Last intervention   Ambassadeur 4 270
     
    "With powerline adapters, we're going to reach 300 Mbit/s at full speed on the downloads.

    It seems like you don't really know what you're talking about. You can easily find powerline adapters with a speed of 1300 Mbits/s. So, that's higher than the speeds of the Gigabit Ethernet ports on our current PCs.

    Question: since many of the latest motherboards are equipped with 2.5G Ethernet ports, shouldn't we buy them since we still don't have devices in our homes capable of reaching that speed?

    --
    Misnaming things adds to the misery of the world (Albert Camus)"
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    1. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442
       
      these are theoretical megabits/s of paper....
      actual speeds are rather in the values I indicated.... when everything is working well
      2.5g switches are starting to come out and the Freebox Pop has a 2.5g port, some NAS too, but in my opinion, as long as it's not sold at the same price as gigabit, it won't bring much or anything significant.
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    2. epango Posted messages 37195 Registration date   Status Member Last intervention   4 270 > brupala Posted messages 111142 Registration date   Status Member Last intervention  
       
      "The 2.5G switches are starting to come out and the Freebox Pop has a 2.5G port."

      Why did you mock him for buying a motherboard with a 2.5G Ethernet port? There's no obligation to respond. If you don't have a solution to his problem, you shouldn't write this kind of thing "Arf,
      a 2.5 Gbit/s card connected via powerline adapters.... that's amusing.
      We need to entertain ourselves these days.
      It's a bit like a Ferrari on the Paris ring road at 6 PM."
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    3. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442 > epango Posted messages 37195 Registration date   Status Member Last intervention  
       
      well yes, it's crap to have powerline adapters on a 2.5G port, sorry,
      but we're not there yet, the card isn't even installed on Windows.
      And I was the first to respond and point in the right direction.
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    4. epango Posted messages 37195 Registration date   Status Member Last intervention   4 270 > brupala Posted messages 111142 Registration date   Status Member Last intervention  
       
      I believe the direction in which you're steering the subject is pointless. His problem is that his network card isn't recognized, not the fact that his motherboard has a 2.5G network card, which is a non-issue for anyone except you. So let's stop the damage.
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    5. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442 > epango Posted messages 37195 Registration date   Status Member Last intervention  
       
      Indeed, I told you twice that it was off-topic.
      I made a comment about the use of powerline adapters, which I generally advise against except for temporary installations, but you are heavily insisting on annoying me about it while you are wrong.
      I only made a remark, not directed the topic towards that, rather in the direction of the drivers since post 1.
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  9. epango Posted messages 37195 Registration date   Status Member Last intervention   Ambassadeur 4 270
     
    PS: "but anyway, in my opinion, as long as it is not sold at the same price as the gigabit, it won't bring anything or not much." Counter-example:

    Asus TUF GAMING B550-PLUS, with:

    https://www.topachat.com/pages/detail2_cat_est_micro_puis_rubrique_est_w_cm_am4_puis_ref_est_in20002958.html

    cheaper than the MSI MAG B550 Tomahawk, without:

    https://www.topachat.com/pages/detail2_cat_est_micro_puis_rubrique_est_w_cm_am4_puis_ref_est_in20003561.html

    --
    Misnaming things is adding to the misery of the world (Albert Camus)
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    1. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442
       
      Well, we're off-topic and discussing very expensive products, but if I'm reading correctly, the second one has 2 Ethernet ports, one of which is also in 8125.
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