I have an Asus A8N32-SLI Deluxe motherboard. It has double Gbit ethernets: one Marvell Yukon and one nVidia. I use windows xp sp2 prof.
Sometimes while it's working, the lan link led on my adsl modem goes dark. But it still works.
I use primarily marvell yukon. Sometimes when I boot up, In the device manager, I cannot see it.
I first installed drivers from MB's disk, and got updates from windows update.
Where do you think the problem may be at ? In the driver or the MB ?