Windows 10: Ethernet suddenly running at 100Mbps instead of 1000Mbps

Discus and support Ethernet suddenly running at 100Mbps instead of 1000Mbps in Windows 10 Network and Sharing to solve the problem; Hi, So, a few weeks ago I had some problems with getting 1000Mbps running (it ran at 100Mbps) on the motherboards ethernet port. It ended in me buying... Discussion in 'Windows 10 Network and Sharing' started by Rydberg95, Jan 20, 2021.

  1. RYDBERG95
    Rydberg95 Win User

    Ethernet suddenly running at 100Mbps instead of 1000Mbps


    Hi,

    So, a few weeks ago I had some problems with getting 1000Mbps running (it ran at 100Mbps) on the motherboards ethernet port. It ended in me buying a PCI-E express card, and the connection started running at 1000Mbps.

    The PCI-e card is of model TP-Link TG-3468.
    The router is of model ASUS RT-AX82U.
    My Windows Version is "Version 20H2 (OS Build 19042.746)"

    Fast forward to yesterday, when I (unrelatedly) installed a switch between the router and a couple of other connected devices. I noticed that my desktop computer started running at 100Mbps again, and I can't get it to run at 1000Mbps. I'm not sure that it's related to me installing the switch (it shouldn't be).

    Some things I've tried/other info:

    • The desktop computer not getting gigabit speed is not connected to the switch - it's connected directly to the router.
    • I tried connecting a Raspberry Pi 4 with the same cable that the desktop computer is using, and it gets 1000Mbps speed. So - the cable doesn't seem to be the problem.
    • I tried switching the PCI-E slot that the gigabit card is installed into, and it doesn't make a difference-.
    • I tried installing the latest drivers (both from TP-Link:s website, and Windows Update). No difference.
    • I tried forcing gigabit speed in the settings of the adapter, but it still connects with 100Mbps.
    • I think some Windows Updates was installed a few days ago. Don't know if it could be

    Does anyone have any suggestions in getting my connection to run at 1000Mbps again?

    :)
     
    Rydberg95, Jan 20, 2021
    #1
  2. PAUL7989
    Paul7989 Win User

    Router dropping from 1000mbps to 100mbps

    My router was running 4 ports at 1000mbps but now 3 have dropped to 100mbps I have tried new cables but has not worked??? Help please..
     
    Paul7989, Jan 20, 2021
    #2
  3. LSE123
    lse123 Win User
    Is possible do a PC backup on NAS with 1000Mbps speed ?????


    I have a PC 1000Mbps Ethernet card, a switch 1000Mbps, a NAS 1000Mbps, and an Internet Gateway 100Mbps


    Is possible do a PC backup on NAS with 1000Mbps speed ?????
     
    lse123, Jan 20, 2021
    #3
  4. GL3NBORJ
    gl3nborj Win User

    Ethernet suddenly running at 100Mbps instead of 1000Mbps

    Is possible do a PC backup on NAS with 1000Mbps speed ?????


    Gateway speed will choke both, try connecting the NAS directly to the ethernet card to achieve your goal. Else buy a high speed router/gateway whichi can provide the said transfer speed.
     
    gl3nborj, Jan 20, 2021
    #4
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Ethernet suddenly running at 100Mbps instead of 1000Mbps

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