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echo: nthelp
to: Rich Gauszka
from: Geo.
date: 2006-12-30 15:54:04
subject: Re: Slow Network in Vista?

From: "Geo." 

Didn't help. Still maxing out around 5-6mb/s.

I should point out that I'm transferring from my terraserver, it's linux
based as far as I know. Other machines in the house get 10x that transfer
rate as vista does. I'm going to have to try to transfer between Vista and
XP to see if that goes faster, that may give us more information.

Geo.

"Rich Gauszka"  wrote in
message news:4595c9b5$1{at}w3.nls.net...
>
> http://www.neillans.co.uk/?p=165
> Heres the fix (well, this worked for me).
>
> This problem existed in RC1 and to some extent RC2 too. I did report it,
> and it's partially fixed but still not good. Microsoft at the time blamed
> my Cisco router.. Anyway, I get really poor intermittant network
> performance. It turns out this is due to a new addition in the TCP/IP
> stack called Receive Window Auto-Tuning Level.
>
> To check the status of this feature, run "netsh interface tcp
show global"
> at a command prompt.
>
> You will see something like:
>
> Querying active state.
>
> TCP Global Parameters
> ----------------
> Receive-Side Scaling State : enabled
> Chimney Offload State : enabled
> Receive Window Auto-Tuning Level : disabled
> Add-On Congestion Control Provider : none
> ECN Capability : disabled
> RFC 1323 Timestamps : disabled
>
> In this example, you can see I have it disabled. (My network performance
> returns to normal with it off!).
> To disable it, run: "netsh interface tcp set global
autotuning=disabled"
> To enable it, run: "netsh interface tcp set global autotuning=normal"
> (Both these last two should be run from an Administrator Command Prompt,
> not a "normal" command prompt).
>
>

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