BROADBAND in Windows XP:

this is for broad band connections. I didn't try it on dial up but might work for dial up.

1.make sure your logged on as actually "Administrator". do not log on with any account that just has administrator privileges.
2. start> run>type gpedit.msc
3. expand the "local computer policy" branch
4. expand the "administrative templates" branch
5. expand the "network branch"
6. Highlight the "QoS Packet Scheduler" in left window
7. in right window double click the "limit reservable bandwidth" setting
8. on setting tab check the "enabled" item
9. where it says "Bandwidth limit %" change it to read 0
reboot if you want to but not necessary on some systems your all done.

This is more of a "counter what XP does" thing. In other words,
XP seems to want to reserve 20% of the bandwidth for its self.
Even with QoS disabled, even when this item is disabled. So why not use it to your advantage.  read more...