HI! I am Assuming that you have installed sp2 right?
although this not might be the complete problem you could try a few things
that I tried in order to get better connection on a p2p network.
SP2 limits the amount of connects but there is a patch located at this
place.
http://www.lvllord.de/?url=tools#4226patch
Here is another thing.
-------------------------------------broadband
enhancement-------------------
Increase BROADBAND:
this ones simple:
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.
Effect is immediate on some systems. some need re-boot. I have one machine
that needs to reboot first, the others didn't. Don't know why this is.
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. To
demonstrate the problem with this on stand alone machines start up a big
download from a server with an FTP client. Try to find a server that doesn't
max out your bandwidth. In this case you want a slow to medium speed server
to demonstrate this. Let it run for a couple of minutes to get stable. The
start up another download from the same server with another instance of your
FTP client. You will notice that the available bandwidth is now being fought
over and one of the clients download will be very slow or both will slow
down when they should both be using the available bandwidth. Using this
"tweak" both clients will have a fair share of the bandwidth and will not
fight over the bandwidth.
-------------------------------------------------------end of broadband
enhancment------------
Here is another place for you to go...
http://www.winxpcentral.com/windowsxp/
I hope this helps
Paul dallaire