We have see many cases like this one. You may want to try this command:
netsh interface tcp set global autotuninglevel=disabled. Or This post may
Solved: Vista Remote Desktop Slow ...Using Remote desktop access Vista slow.
Resolution: 1. Disable IPv6 on the Vista. 2. Run "netsh interface tcp set
global autotuninglevel=disabled" command. ...
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
How to Setup Windows, Network, VPN & Remote Access on
"s100bus" <firstname.lastname@example.org> wrote in message
> Hello all,
> Target system is XP Pro SP2+, with the RDP Client 6.0 update installed
> Client is Vsta Business, also up to patch
> If I attempt to connect to the XP Pro system from home or on the road
> with an XP system RDP works fine. If I use the Vista Business laptop I can
> connect, but then I drop after a second or so.
> I've gone to the page suggested that shows the Vista RDP advanced setting
> suggestions and made the changes. I've also checked the firewall settings
> the XP system exceptions and added an RDP exception to port 3389 in the
> firewall exception list. Before I added the exception to the Vista system
> firewall I would connect, get part of a screen and then get a "reconnect"
> I'm going to test a Vista to Vista connection with the laptop today and
> if that works.
> Is there anything else I should do ?