This tweak is for broadband cable connections on stand alone machines with winXP professional version - might work on Home version also. It will probably work with networked machines as well but I haven't tried it in that configuration. This is for windows XP only.
1. From the windows XP cd in the support directory from the support cab, extract the file netcap.exe and place it in a directory on your hard drive or even in the root of your C:\ drive.
2. Next, open up a command prompt window and change directories to where you put netcap.exe. then type "netcap/?". It will list some commands that are available for netcap and a netmon driver will be installed. At the bottom you will see your adapters. You should see two of them if using a 3Com card. One will be for LAN and the other will be for WAN something or other.
3. Next type "netcap/Remove". This will remove the netmon driver.
4. Open up control panel / system / dev man and look at your network adapters. You should now see two of them and one will have a yellow ! on it. Right click on the one without the yellow ! and choose uninstall. YES! you are uninstalling your network adapter, continue with the uninstall. Do not restart yet.
5. Check your connection properties to make sure that no connection exists. If you get a wizard just cancel out of it.
6. Now re-start the machine.
8. Choose connection properties and uncheck the "QOS" box
9. Re-start the machine
10. After restart enjoy the increased responsiveness of IE, faster page loading, and a connection speed boost.