i had problems with net few weeks ago, so spent hours googling my problem,
which was wen streaming, connection was really slow and taking ages.
so i found this soloution:
Moderator Edit: Do not use this with Windows 7, read this article instead.
its a standalone program so u dont need to install
1st: download and open program
2nd: it says optimal settings in bottom right corner, click that then apply
3rd: reboot computer
i seen my average streaming go from 100-200 up to 500-700, which solved my problem.
hope this helps everyone
Moderator Edit: Added more detailed information
Description: The TCP Optimizer is a free, easy Windows program that provides an intuitive interface for tuning and optimizing your Internet connection. There is no installation required, just download and run.
The program can aid both the novice and the advanced user in tweaking related TCP/IP parameters in the Windows Registry, making it easy to tune your system to the type of Internet connection used. The tool uses advanced algorithms, and the bandwidth*delay product to find the best TCP Window for your specific connection speed. It provides for easy tuning of all related TCP/IP parameters, such as MTU, RWIN, and even advanced ones like QoS and ToS/Diffserv prioritization. The program works with all current versions of Windows, and includes additional tools, such as testing average latency over multiple hosts, and finding the largest possible packet size (MTU).