> Felipe, > I am running the following two nic cards. > > NIC cards: > 1) 3c905B > Driver: 3c59x > 3Com Corporation > > 2) RTL 8139 > Driver: 8139too > Dlink Systems > Your problem is not NIC/NIC driver specific. I've had both of these cards in the same system working perfectly (3 months ago). Look at your motherboard manual and make sure you're not using shared interrupts; move around your cards to other slots (you should have done this a long time ago (even before posting :))). Regards, Mazhar -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/