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Windows 7: W7 Disable autotuning without 65535 Limitation

14 Jul 2010   #1

Windows 7
 
 
W7 Disable autotuning without 65535 Limitation

Hello All,

In Win 7 (and Vista) I know we can disable TCP/IP auto-tuning. But what that essentially does is it will limit the RWIN size to 65535, whether you turn on of off the tcp1323opts.

Does anybody know how I can disable auto-tuning and also enable window sizes greater than 65535? (I essentially want to have XP type behavior)?

Regards,
Harsha


My System SpecsSystem Spec
.

14 Jul 2010   #2
NoN

Windows 7 Professional SP1 - x64 [Non-UEFI Boot]
 
 

Quote   Quote: Originally Posted by harshacss View Post
Hello All,

In Win 7 (and Vista) I know we can disable TCP/IP auto-tuning. But what that essentially does is it will limit the RWIN size to 65535, whether you turn on of off the tcp1323opts.

Does anybody know how I can disable auto-tuning and also enable window sizes greater than 65535? (I essentially want to have XP type behavior)?

Regards,
Harsha
For auto-tuning to set disable, open a "cmd" prompt with admin right then type:

netsh int tcp set global autotuninglevel=disabled, but will still limited at 65535.

I think you'll have to registry manually do it to change the receive windows.
My System SpecsSystem Spec
14 Jul 2010   #3

Windows 7
 
 

Unfortunately nothing I change in the registry allows me to go beyond 65535.

Harsha
My System SpecsSystem Spec
.


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 W7 Disable autotuning without 65535 Limitation




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