i have run 2 nic cards in an assortment of computers. the reason is that the server is unix based & the router modem for the web only has a command base interface for router settings. so we decided that the second nic card will be used for a p2p network via a 16 port switch. Well this system has worked succesfully for years. I just did the same thing recently to a dell computer. The problem I have is that if both cards are active i cannot get on to the web. one card has static ip in the 10.0.0.xx w/submask 255.255.255.0, while the card for the web is dchp enabled its ip range is 192.168.254.xxx. if i type the url of the router status page it get there but no further. The other nic card only has to be plugged into an active hub or switch(no computer attached) to keep me from reaching the web. as soon as i un plug the cat5 cable fron the switch or hub my internet access is there. Once in a while they both may work together but more often then not the internet connection will be terminated. I run 7 other computers in this same configuration with no problems they are on a p2p network and some have w95, w98 & xp pro as the o/s. i have one last thing to investigate, i noticed that both nics have the same irq assigned, could this be the problem
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2 NICs sharing the same IRQ could be problematic. Try moving one of the NICs to another PCI slot; that might force a reallocation of IRQs on the PCI bus.
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