2. On the window that will show up, click on Administrative Templates, Network, QoS Packet Scheduler.
It seems that Windows XP reserves 20% of the available bandwidth even if this option is not configured and even if you don’t use QoS (Quality of Service) feature (which is disabled by default).
Keep in mind that there are several other reasons for your download speed not reaching the labeled speed of your Internet connection such as:
* The labeled speed of your Internet connection is its maximum speed, not meaning that you will be able to always get that download speed. Your broadband operator only guarantees this speed between your home (or office) and their network.
* High traffic on your service provider network.
* High traffic on the server you are downloading a file.
* Speed limit on the server you are downloading a file (e.g. if the server has its download speed limited to 2 Mbps you won’t be able to reach a higher speed than that).
* Route from your home or office to the server where the file is located.
* Your Internet connection being shared with other computers at your home or office.
* Downloading several files at the same time with P2P programs, eating up part of the available bandwidth of your Internet connection.