Friday, June 15, 2007

RDP from Vista slow after Windows 2003 Server SP2 installed

After installing W2K3 SP2 on one of my servers, the RDP session was awfully slow, especially mouse clicks.

It appears that Vista TCP/IP "Receive Window Auto-Tuning " is the culprit.

To disable it, open a command prompt and type:

netsh interface tcp set global rss=disabled
netsh interface tcp set global autotuninglevel=disabled

and reboot .

Credits to:


Amber said...

I keep trying that but it tells me that this command failed because it requires elevation...

now what?

McThePro said...

Did you disable UAC ?

Phill Hardstaff said...

there is no need to disable UAC, just right click Command Prompt and then select run as administrator.