Windows 7 TCP/IP Tweaks II.

(Last Updated On: 2019/05/17)

The Internet Connectivity Evaluation Tool checks your Internet router to see if it supports certain technologies.

  • Internet Connectivity Evaluation Tool

Start menu >All Programs > Accessories > right-click Command Prompt and choose “Run as Administrator”.

  • To check the current status: netsh int tcp show global
  • netsh int tcp set global chimney=enabled
  • netsh int tcp set global autotuninglevel=normal
  • netsh int tcp set global ecncapability=enable
  • netsh int tcp set global dca=enable
  • netsh int tcp set global congestionprovider=ctcp
  • netsh int tcp set heuristics disabled (or enable)

regedit: Export (Tcpip-ServiceProvider.old.reg)

  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip \ ServiceProvider
  • LocalPriority=4 DWORD, recommended: 4 – local names cache
  • HostsPriority=5 DWORD, recommended: 5 – the HOSTS file
  • DnsPriority=6 DWORD, recommended: 6 – DNS
  • NetbtPriority=7 DWORD, recommended: 7 – NetBT


Remove / increase the limit of half-open (incomplete outbound) TCP connections, Release the power of your network, download faster, and more task can be run at the same time.


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