Vista network optimization causes RDP to slow down

Source: Internet
Author: User

For Administrators, Remote Desktop Protocol (RDP) connections may be very slow when Windows Server 2003 64-bit Server is controlled using Vista Remote Desktop Connection (RDC, screen refresh also slows down after the 64-bit SP2 version is applied. It is very interesting. The root cause of the problem is the optimization of Vista's network connection. It was a very good feature, but it had a problem when combined with Windows Server 2003 64-bit SP2. Of course, this is not Vista's fault.


Vista network optimization causes RDP to slow down

Solution: Disable and disable these network settings. They are two settings that affect network adjustment. Because they are automatically adjusted to the accept window for automatic optimization, and will continuously detect the optimal window size based on the network bandwidth, according to the network conditions to adjust the receiving window to the maximum, thus occupying a large amount of bandwidth.

They are:

Netsh interface tcp set global rss = disabled

Netsh interface tcp set global autotuninglevel = disabled

You can also run the following command:

Netsh interface tcp set global rss = disabled autotuninglevel = disabled

Restart the machine to complete the operation, and then the RDP connection should be as fast as usual. (

Author: xx appbeta

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