Many possibilities. Try this link first.
Vista Slow Issues
Vista business slow accessing domain resources ... I have a mix of
machines running on an SBS domain. (XP, Mac, and Vista > > business) Two are
Vista . ...
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Vista: Slow Network Performance
I am curious if anyone else is experience extremely slow network
performance when attempting to copy files between either another Vista
Desktop or a ...
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
How to Setup Windows, Network, VPN & Remote Access on
@discussions.microsoft.com> wrote in message
> Hi there.
> How can I fix this very annoying problem?
> Copying from files from my XP computer is SLOWER than downloading stuff
> my ADSL2+ 8Mbit line!
> I'm using 802.11n on my Vista laptop, connected to a dedicated AP running
> only N mode, and the other comp is connected via 802.11g, both comps
> "Excellent" in connections....
> But it can't be my WiFi that's not working, since DL from the Internet is
> I was just downloading some torrents with 800-900KB/sec speed, current
> of XP->Vista file copy is 510 KB/sec! :-(
> How do I fix this ? Uninstall vista ? :-p