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    How To Tweak Vista TCP Settings

    This is a discussion on How To Tweak Vista TCP Settings within the General chat forums, part of the Community channel category; Hi all, as you know you can’t use TCPOptimizer with Vista, but you can tweak Vista TCP manually. Did a ...

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      oldphart's Avatar
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      How To Tweak Vista TCP Settings

      Hi all, as you know you can’t use TCPOptimizer with Vista, but you can tweak Vista TCP manually. Did a search on the forum nothing turned up. So follow these steps to tweak your Vista TCP settings -
      Remember : To tweak any TCP settings in Vista you need to run cmd as Administrator.
      Programs > Accessories > Command Prompt >
      Right Click on Command Prompt > Select "Run as administrator

      To check status :- netsh int tcp show global
      (copy and paste) into CMD hit return

      C:\Windows\system32>netsh int tcp show global
      Quering active state...

      TCP GLOBAL PARAMETERS NORMAL SETTINGS
      -------------------------------------

      RECEIVE-SIDE SCALING STATE : ENABLED
      CHIMMY OFFLOAD STATE : DISABLED
      RECEIVE WINDOW AUTO-TUNING LEVEL : HIGHLYRESTRICTED
      ADD-ON CONGESTION CONTROL PROVIDER : NONE
      ECN CAPABILITY : DISABLED
      RFC 1323 TIMESTAMPS : DISABLED


      A.TCP GLOBAL PARAMETERS TWEAKED
      -----------------------------

      RECEIVE-SIDE SCALING STATE : ENABLED
      CHIMMY OFFLOAD STATE : ENABLED
      RECEIVE WINDOW AUTO-TUNING LEVEL : NORMAL
      ADD-ON CONGESTION CONTROL PROVIDER : CTCP
      ECN CAPABILITY : ENABLED
      RFC 1323 TIMESTAMPS : DISABLE

      Just copy and paste each command into CMD hit return -

      C:\Windows\system32>netsh int tcp set global rss=enabled
      OK.

      RECEIVE-SIDE SCALING STATE-

      netsh int tcp set global rss=enabled

      netsh int tcp set global rss=disabled

      CHIMMY OFFLOAD STATE-

      netsh int tcp set global chimney=enabled

      netsh int tcp set global chimney=disabled

      RECEIVE WINDOW AUTO-TUNING LEVEL-

      netsh int tcp set global autotuninglevel=normal

      netsh int tcp set global autotuninglevel=highlyrestricted

      ADD-ON CONGESTION CONTROL PROVIDER-

      netsh int tcp set global congestionprovider=ctcp

      netsh int tcp set global congestionprovider=none

      ECN CAPABILITY- ( PLEASE NOTE IF YOU HAVE TROUBLE CONTACTING A SERVER I.E GAMES SERVER)
      (DISABLE - ECN [ netsh int tcp set global ecncapability=default ])
      netsh int tcp set global ecncapability=disabled

      netsh int tcp set global ecncapability=enabled

      netsh int tcp set global ecncapability=default

      ecncapability parameters are:

      disabled: Disable ECN Capability.
      enabled: Enable ECN Capability.
      default: Restore ECN Capability state to the system default

      RFC 1323 TIMESTAMPS- : DISABLED

      B..TCP GLOBAL PARAMETERS tweaked

      To check status :- netsh int tcp show global

      RECEIVE-SIDE SCALING STATE : ENABLED
      CHIMMY OFFLOAD STATE : ENABLED
      RECEIVE WINDOW AUTO-TUNING LEVEL : DISABLED
      ADD-ON CONGESTION CONTROL PROVIDER : CTCP
      ECN CAPABILITY : ENABLED
      RFC 1323 TIMESTAMPS : DISABLED

      A. netsh int tcp set global autotuninglevel=disable
      (disable's autotuning)

      B. netsh interface tcp set global autotuninglevel=normal
      (restore the setting back to the default)



      Hope this helps, might be worth adding to Sky Broadband Tutorial section as a sticky if people agree.
      Last edited by oldphart; 09-05-09 at 05:32 PM.


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      Re: How To Tweak Vista TCP Settings

      or go here
      SG Tweaking programs, tools and links - SpeedGuide.net Broadband Community
      and right click the vista command and save to your desktop and run

     

     

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