I have had this same hardware working for about a year now. First I started off with RH9 just before it stoped being supported and then went to FC2. Everything has been working fine untill last night. I come home to see an error message about my ethernet card about an IRQ probem and then is gave me some address that I didn't understand. So I checked the config of the network settings and all was fine. I rebooted to check the bios. Nothing looked out of the normal. I rebooted and eth0 and loopback come up ok and then about the time where the clock synconizer starts looking for the time servers it fails. Then right before I get the prompt it gives the error message. Also when I request a page through it (squid/dansguardian) click the KVM switch back over and i see the error message again. I am not sure whats causing this. I can ping all machines on the network as well as the gateway and yahoo.com The card seems to be working, but is giving this error message anytime I try a web page in a browser. I have lunch in 30 min so I am going to go home and remove the card and have kudzu remove the config and then add it back. I hope that this will fix this. Oh I am using kernal 2.6.9.1-3 or something like that number. I have tried some older kernals and they give the same error message also so it not the new kernal version.

run netstat -i and look at the RX-ERR ant TX-ERR numbers. These are the receive and transmit error numbers.

Also, look in /var/log/messages. Paste the error you're getting in your post. Just guessing, it sounds like it's time for a NIC, but it could be the cable, the switch port, or a whole host of other things.

It seems to be working fine now. I just went home, removed the card, had kuduz remove the config and then added the card back. I also added 256m memory that I had for another project thats on hold now. I'll wait a few days before I change out the hardware for good.