Oliver Sommer 
2008-09-29
To turn off the advanced networking features like EnableRSS (Receive Side Scalling) and/or TCPChimney which can somehow slow your setup very much down to the speed of a turtle:
Press Shift & F10 during first setup wizard page on every box:
netsh int tcp show global
netsh int tcp set global chimney=disabled
netsh int tcp set global rss=disabled
netsh int tcp show global