Vista network optimization leads to RDP slowing

For administrators, using Vista Remote Desktop Connection (RDC) to control the running of Windows Server 2003 64-bit version servers, Remote Desktop Protocol (RDP) connections can be very slow, and screen refreshes will slow after the SP2 64-bit version is applied. Interestingly, the problem stems from Vista's optimization of network connectivity, which would have been a good feature, with Windows Server 2003 64-bit SP2. Of course, this is not a vista fault.

Vista network optimization leads to RDP slowing

Workaround: Turn off and disable these network settings, which are two settings that affect network tuning. Because they automatically adjust to accept the window automatically optimized, and will continue to detect the best window based on network bandwidth, according to the network conditions to maximize the receiving window, so as to occupy a large number of bandwidth.

They are:

netsh interface tcp set global rss=disabled

netsh interface tcp set global autotuninglevel=disabled

You can also use one line of commands to get it done:

netsh interface tcp set global rss=disabled autotuninglevel=disabled

Restarting the machine is done, and the RDP connection should be fast as usual.