sorry, I forgot to also mention this step!

first run this syntax in the command prompt, in order to turn off Vista's MTU autotuning:

netsh interface tcp set global autotuninglevel=disabled







On Thursday, January 10, 2008 at 1:47 pm, Stephanie wrote:

>As my dad (Steve) mentioned, it turned out that once I changed the MTU settings 
on 

>my Vista machine, I was able to access all websites - yay! 

>These are the steps I followed (since DrTCP, which works with XP, doesn't work in 

>Vista):

>To set the MTU settings on a Windows Vista Machine 

>

>

> 1. Click on Vista icon (start), All programs, Accessories, then right click on 
Command 

>prompt and select "Run as administrator"

>

>In the Command prompt window, type in the following.

>

>1.  netsh interface ipv4 show subinterfaces

>   (this will display a list of interfaces on the system and their current MTU settings)

>

>2.  netsh interface ipv4 set subinterface "Local Area Connection" mtu=XXXX store=persistent

>   (replace "Local Area Connection" with the interface name of the connection you 

>want to change the MTU to. This is normally "Local Area Connection," but double-check 

>that it's the same on your computer. Where the X's are, insert the desired MTU setting. 

>1500 is the default. Websites I read recommended trying the following values in 
decreasing 

>order, restarting the machine each time, until the problem goes away and you can 

>connect to all websites: 1500, 1492, 1472, 1468, 1460, 1435, 1430, 1400)

>

> 3. Restart the Vista machine.

>

>Hopefully that works! (It worked for me when I set it to 1435) If it doesn't, and 

>you want to reset the default "autotuning" that Vista comes with, here is the syntax 

>to reset the changes you made: 

>

>netsh int tcp set global autotuninglevel=normal

>

>Hope that helps :)

>

>

>

> 

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