You may want to disable auto tuning. Or this search result may help too.
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 . ...
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
How to Setup Windows, Network, VPN & Remote Access on
"brob82" <email@example.com> wrote in message
> Hi all,
> I know this has been aked a lot but I've tried everything I've found.
> My internet seems to recently gone very slow. I used to get around a
> 1100kbps connection but this has dropped to 250kbps.
> I know its a vista problem as I've tried the same connection on both an
> eeePC (linux) and XP laptop both of which get the 1100kbps connection.
> I'm wired but do have the ability to go wireless (I have the wireless
> adapter turned off at the min). But when I do go wireless I have the
> same slow connection, it is also as slow in safe mode.
> Please any help would be very much appreciated.