Windows 10: Slow Internet on 1 PC, caused by OS global autotuning level????

Discus and support Slow Internet on 1 PC, caused by OS global autotuning level???? in Windows 10 Network and Sharing to solve the problem; Was working on my son's PC last night and it said there was a new GeForce driver. I downloaded it, and it seemed like it was downloading slow, but I... Discussion in 'Windows 10 Network and Sharing' started by pparks1, Mar 20, 2020.

  1. PPARKS1
    pparks1 Win User

    Slow Internet on 1 PC, caused by OS global autotuning level????


    Was working on my son's PC last night and it said there was a new GeForce driver. I downloaded it, and it seemed like it was downloading slow, but I chalked it up to internet bandwidth. A few minutes later, I decided I too should update my PC's Nvidia driver, and on my PC the download was very fast. 60MB/sec give or take, compared to son's 1.2MB/sec.

    Went to son's PC and tested Nvidia again and still slow. Tried a few ISO downloads from the web, and his computer seemed stuck at 1.2MB/sec (give or take), where my PC would run 20-30MB/sec using same mirrors.

    I rebooted his PC and it was still slow
    Tried Brave browser, Chrome and Edge...all slow
    Tried changing his network cable, still slow
    His mobo has wifi, so I unplugged ethernet and tried wifi and it was still slow
    I tried updating his LAN drivers from Asus, still slow
    I uninstalled his LAN drivers from ASUS, rebooted and went with standard windows discovered drivers, still slow.


    Opened command line as admin, ran this command, but things continued to be slow
    netsh int tcp set global autotuninglevel=disabled

    Ran Windows update, downloaded the optional cumulative update for Windows 10 1909, and system was still slow.

    Went back and re-enabled the autotuninglevel with
    netsh int tcp set global autotuninglevel=normal.

    Viola....speeds were back. Now, his Nvidia downloads were coming down around 50-60MB/sec via Chrome or Brave. Tested the large ISO downloads and speeds matched my other PC on my network.

    So, took a Macrium image and made a note in case I ever saw this again.

    Figured I would share here in case anybody here sees something similar.

    -Pat

    :)
     
    pparks1, Mar 20, 2020
    #1
  2. XACCELL
    xaccell Win User

    Slow Internet on 1 PC, caused by OS global autotuning level????

    what is the default state for global autotuning??? First time I hear about it. How was it set in your PC?
     
    xaccell, Mar 20, 2020
    #2
  3. PPARKS1
    pparks1 Win User
    Slow Internet on 1 PC, caused by OS global autotuning level????

    Was working on my son's PC last night and it said there was a new GeForce driver. I downloaded it, and it seemed like it was downloading slow, but I chalked it up to internet bandwidth. A few minutes later, I decided I too should update my PC's Nvidia driver, and on my PC the download was very fast. 60MB/sec give or take, compared to son's 1.2MB/sec.

    Went to son's PC and tested Nvidia again and still slow. Tried a few ISO downloads from the web, and his computer seemed stuck at 1.2MB/sec (give or take), where my PC would run 20-30MB/sec using same mirrors.

    I rebooted his PC and it was still slow
    Tried Brave browser, Chrome and Edge...all slow
    Tried changing his network cable, still slow
    His mobo has wifi, so I unplugged ethernet and tried wifi and it was still slow
    I tried updating his LAN drivers from Asus, still slow
    I uninstalled his LAN drivers from ASUS, rebooted and went with standard windows discovered drivers, still slow.


    Opened command line as admin, ran this command, but things continued to be slow
    netsh int tcp set global autotuninglevel=disabled

    Ran Windows update, downloaded the optional cumulative update for Windows 10 1909, and system was still slow.

    Went back and re-enabled the autotuninglevel with
    netsh int tcp set global autotuninglevel=normal.

    Viola....speeds were back. Now, his Nvidia downloads were coming down around 50-60MB/sec via Chrome or Brave. Tested the large ISO downloads and speeds matched my other PC on my network.

    So, took a Macrium image and made a note in case I ever saw this again.

    Figured I would share here in case anybody here sees something similar.

    -Pat
     
    pparks1, Mar 20, 2020
    #3
  4. PPARKS1
    pparks1 Win User

    Slow Internet on 1 PC, caused by OS global autotuning level????

    Slow Internet on 1 PC, caused by OS global autotuning level????

    This is a feature first introduced in Vista that is still present in Windows 10. I didn't tweak or make any changes to my system with respect to these settings. So, these settings were where they would have been out of the box on an install.

    My system was set at the normal level when I started, you can check your status with
    netsh interface tcp show global
     
    pparks1, Mar 20, 2020
    #4
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Slow Internet on 1 PC, caused by OS global autotuning level????

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