This is case where the cutting edge technological advances being enabled on Microsoft’s operating system by default is a recipe for disaster for users who have older networks and older network devices (specifically older routers). Vista comes installed and enabled with something called “Receive Window Auto-Tuning.”
On advanced networks, it’s actually a pretty cool technology where the transfer of data is monitored and Vista automatically “tunes” the TCP window field to optimize packet transfer. Older routers simply do not “play nice” when it comes to that kind of window resizing. This spells trouble for home users who don’t know the difference between a packet of data and a packet of sugar. What was Microsoft thinking?
Luckily – there’s a way for you, the home user, to turn this default feature off as well. First, click on “Start” and type “cmd” and right-click on the command icon. You’ll see the following window.
Click on “Run as Administrator.” Then, in the command box, type “netsh interface tcp set global autotuning=disabled” which will disable autotuning.
Now that you’ve got your new Vista finally communicating with your router (hopefully), you’re ready to tweak Vista even more in order to dramatically boost the Internet speed.
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