I have a Mac Pro and a 120 Mbps up (2 Mbps down) broadband cable connection over my Fritbox 7390.
When I use the Microsoft RDP Client or the CorD-Client on OS X (Lion, Snow Leopard, Leopard - all have the same problem), the RDP connection is very slow. When I start Windows in Boot Camp on the same machine and use the RDP client from Windows, everything is fine.
Can anyone tell me the reason for this? How can I fix it? Are there any modifications I can make, such as TCP optimization?