On Wed, 08 Sep 2010 08:45:51 +0800, Umarzuki Mochlis wrote: > when a NIC supports 1000base-T but its speed is at 100base-T and i want > to change it to 100Mb/s. How do i really do that? Question is "do you really want to do that"? :-) If link is setup at 100base-T is for something you have to investigate further (cable, switch, adapter...). Forcing speed connection can be problematic. Greetings, -- Camaleón