Windows 10: ethernet not working after changning speed and duplex

Discus and support ethernet not working after changning speed and duplex in Windows 10 Network and Sharing to solve the problem; so i have a intel pro 1000 pt server adapter and it works fine when i first used it but it was 10mb/sec so i changed speed and duplex to 100 mb/sec and... Discussion in 'Windows 10 Network and Sharing' started by leojca, May 22, 2020.

  1. LEOJCA
    leojca Win User

    ethernet not working after changning speed and duplex


    so i have a intel pro 1000 pt server adapter and it works fine when i first used it but it was 10mb/sec so i changed speed and duplex to 100 mb/sec and after that it wont recognize that a cabel is pluged in and it have worked fine with my old computer?

    :)
     
    leojca, May 22, 2020
    #1
  2. JADENLAY
    JadenLay Win User

    Ethernet internet speed is slow

    My computer is getting slower internet speeds on the same network as other computers. When running a speed test on my laptop on speedtest.net it shows download speeds of 400+ Mbps on the ethernet cable. Now taking that same ethernet cable and plugging
    it into my desktop I am only getting internet speeds of 150 Mbps so it is not the cable or the router. The motherboard is an Asus Strix b450 f gaming and the ethernet is an intel I211-AT, 1 x Gigabit LAN controller so it should support up to a gigabit network
    connection which is far above what I am getting. I have checked to make sure all the drivers are installed and updated to the latest versions but this did not help. In the driver network properties, speed and duplex is set to Auto-negotiation, I have also
    tried setting it to 1.0 Gbps full-duplex but this did not help so I changed it back to auto. I also have flow control set to Rx & Tx Enabled. When running the tests no programs were using the network in any major way. I have tested the network on both the
    speedtest by ookla app, I have tested on their website, and I have tested on the spectrum site using the ookla test. Motherboard bios is also updated to the latest version.
     
    JadenLay, May 22, 2020
    #2
  3. TIME LADY
    Time Lady Win User
    Loosing internet connection

    Under the ethernet adapter settings find speed/duplex in the list & change it from auto negotiation to 100 full duplex.
     
    Time Lady, May 22, 2020
    #3
  4. K0PERNIKUS
    k0pernikus Win User

    ethernet not working after changning speed and duplex

    How to fix Ethernet speed being stuck at 10 Mbit in Win10?

    1. Right click your network icon in the taskbar and select network and sharing center
    2. Select your Ethernet connection
    3. Select "Properties"
    4. Select "Configure"
    5. Select "Advanced"
    6. Find Speed and Duplex, it may be on autonegoation, force 1 Gbps Full Duplex


    ethernet not working after changning speed and duplex HJkrD.png


    1. Press OK
    2. If you experience cable missing or undetected network, reconnect the LAN cable, or try another port on your router

    You should now have 1 Gbps.
     
    k0pernikus, May 22, 2020
    #4
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