Friday, September 2, 2011

Slow RDC / SQL performance using Windows 7 / 2008 R2

Are you experiencing slow remote desktop connections (RDC)?
Or is the database-connect to your SQL server not working properly?

Then have a look at the following Windows feature: Receive Window Auto-Tuning
http://support.microsoft.com/kb/934430/en-us

Right-click Command Prompt, and then click Run as Administrator.
To display the current setting, type the following command, and then press ENTER:

 netsh interface tcp show global

You will find the "Receive Window Auto-Tuning" set to normal.

To disable this feature, type the following command, and then press ENTER:

 netsh interface tcp set global autotuninglevel=disabled


Generally, it seems to be a good idea to disable this feature in a business-related environment.
I've seen this autotuning feature too often screwing up network traffic..



For more information, visit the following site:
http://technet.microsoft.com/en-us/magazine/cc162519.aspx

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