Windows Increase TCP Initial Congestion Window size

(Last Updated On: May 31, 2020)

https://serverfault.com/questions/608060/windows-tcp-window-scaling-hitting-plateau-too-early (Not related)

 

1 Check Current Initial Congestion Window

netsh interface tcp show supplemental

10 이다.

2 Create Window Settings Template

netsh interface tcp set supplemental template=custom icw=46

3 Applying Template

netsh interface tcp set supplemental template=custom

 

 

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however it does not work in Windows 8.1, or Windows 10 workstation variants (read-only setting error).

To set using Powershell cmdlets (only available in server variants):

Set-NetTCPSetting -SettingName InternetCustom -InitialCongestionWindow 10