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To define the problem, Microsoft have stated the following: Vista introduces a new feature called “Receive Window Auto-Tuning”. What it does is to adjust the receive windows size continually based upon the changing network conditions. You can see this article if you are interested in details.
Some people reported that auto-tuning cause network time-out problems with some applications and routers. You can turn it off if you have experienced such problems.
- Open up an elevated command prompt1.
- Enter the following command to disable auto-tuning
netsh interface tcp set global autotuninglevel=disabled
If you find that this doesn’t fix your problem, we (iEnt) suggest you turn it back on, and then disable it again. Some players have reported that they then got a result.
To turn it on the following needs to be done:
- Open up an elevated command prompt1.
- Enter the following command to disable auto-tuning
netsh interface tcp set global autotuninglevel=normal
So by disabling Auto Tuning, then enabling it, and then disabling it again, has been reported to give a good result.
We hope this helps you with your problem.
Note: A reboot might be needed between each change.
1 = When you first use Vista’s command prompt as an administrator, you might be surprised to know that you don’t get any admin priviledges. On Vista, you’ll need to elevate the command prompt in order to do admin functions. Here is how you get an elevated command prompt.
1. Click on Start button.
2. In the Search box, type in Command Prompt. Command Prompt will show up in the search results.
3. Right click on Command Prompt icon and select Run as administrator.
4. Enter the admin credential and you are ready to go.
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