Timeouts when connecting to SQL Server since installing SP1 for Windows 7

Question

I just installed SP1 for windows 7 and I have severe performance degradation when connecting to SQL Server 2005 since then. Establishing connection takes more than 30 seconds while it's instantaneous on another computer. Firewall is disabled and I didn't make any change to the configuration.

What can cause such a problem?

Thankds in advance!

Answer 1

To fix, run the following in an elevated Command Prompt:

netsh interface tcp set global autotuninglevel=disabled

Hopefully this is not too late to help.

_{This is not my answer, it comes from Smiley1244 from the MSDN forums but it is THE answer.}

Answer 2

Here is the link:

http://social.msdn.microsoft.com/Forums/en-US/sqldataaccess/thread/ae849959-b31f-4984-b54f-45dd38fdddf7/