Have you tried Microsoft update? Or this link may help too.
Vista Slow IssuesVista business slow accessing domain resources ... I have a
mix of machines running on an SBS domain. (XP, Mac, and Vista > > business)
Two are Vista . ...
www.chicagotech.net/vista/vistaslow.htm
--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
"Oscar Thornell" <nospam@internet.com> wrote in message
news:53FE6642-935E-41D2-A5F4-3D8FD91932DC@microsoft.com...
> Hi,
>
> I recently bought a new HTPC with 32-bit Vista Ultimate..
> Network access Internet/LAN is extremly slow, just copying a bunch of
> files 1 GB takes days.
>
> I am having other Vista boxes on the network and they have good
> performance. The router and switches on my LAN are all Vista Certified...
> I have tried to disable Window Auto-Tuning as per:
> http://blogs.msdn.com/wndp/archive/2...-on-vista.aspx
>
> Does anyone have a solution/idea on what to do?
>
> Regards
> /Oscar
>