“start” click “Run” enter “gpedit.msc”
Local Computer Policy---Computer Configuration—Administrative Templates
---Network---QoS Packet Scheduler---Limit reservable bandwidth---setting
Make sure check box on “Enabled” is selected
Bandwidth limit (%):0
“Apply” “OK” then restart computer
PS:
Under START > My Computer > My Network Connections > View Network Connections, right-click on your connection and under Properties (where it lists your protocols), make sure QOS Packet Scheduler is enabled.
You need to reboot for changes to take effect.
Note: This tweak applies only to The Professional version of Windows XP.
To read more about QoS, refer to the MSDN Documentation.
