Win10 capping internet at 20%

  1. Posts : 6
    Windows 10 Pro 64bit (Fast Insider Track)

    Win10 capping internet at 20%

    Having an odd problem.
    Win10 latest insider build appears to be capping my internet at 20%.

    If i run ookla speedtest through chrome or ms edge i get close to my full 1 gig connection up and down.

    However if I run the ookla app from windows I barely hit 200meg.

    I have tried multiple network resets and every possible suggested tweak google has offered with no change.

    I have 2 other pcs and they both give similar speeds in bot the browser and the app.

    Is there any way to do a scorched earth reset ?
    Wipe out everything and start with factory settings for services, registry, network card settings ?
      My Computer

  2. Posts : 1,867
    Windows 10 Pro 2004 20H1

    Are you saying you're running the Desktop version of Ookla's Speed Test?

    If so, are you hitting the same test servers as Edge and Chrome?
      My Computer

  3. Posts : 6
    Windows 10 Pro 64bit (Fast Insider Track)
    Thread Starter

    When I run Ooklla through chrome through a browser like chrome on edge it gives me close to my 1gig speed.
    I run the Ookla desktop app and I get approx 200meg.

    Only difference I see is the browser shows multiple connections and the desktop shows single.

    My motherboard is an Asrock z730 Taichi Ultimate with 3 NICs.
    ASRock > Z390 Taichi Ultimate

    AQUANTIA® 10 Gigabit LAN
    Intel I219V and I211AT

    The Aquantia is wired directly into a port on my router, Pace 5286AC
    The two Intel connections are connected into a switch which is then connected into another port on the router.

    My wife's PC is using a single connection, directly into the router and she is getting roughly the same speeds regardless of using browser or desktop Ookla.

    I have tried every ting I can think of to reset my networking, every 'trick' I can find on google, nothing has had any impact.

    I REALLY don't want to do microsoft's usual 'fix' of "just reinstall windows completely from scratch".

    So, any and all suggestions and ideas accepted.

    If I had hair I'd be tearing it out.
      My Computer

  4. Posts : 4,442
    Windows 10 Pro x64, Various Linux Builds, Networking, Storage, Cybersecurity Specialty.

    @Bob77 -

    Did you test with these websites and compare to the other systems?

    Browser based examples:

    BTW - you can always download the installable Ookla for 64 bit here: It works on W10. It's not the Browser based or Microsoft Store app.

    Speedtest for Windows - Download Speedtest for Windows 7 and Windows 10

      My Computer

  5. Posts : 6
    Windows 10 Pro 64bit (Fast Insider Track)
    Thread Starter

    I said in the original post that the downloaded ookla app is showing 200meg while the browser based ookla is approx 900meg.
      My Computer

  6. Posts : 1,867
    Windows 10 Pro 2004 20H1

    I would also check that whatever security software you're using is not scanning traffic on the Desktop Ookla app.

    Add an exemption for speedtest.exe
      My Computer


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