Quote Originally Posted by acebmxer View Post
I would start by recommending the basics. Update to the latest lan driver, make sure you have the latest bios version also might want to try to use a modded bios with the latest Lan rom.

Also are you running overclock. If you settings are not stable any more that could cause the nics to flake out.
Actually i found out the cause not sure why or what, but running two 5870's in crossfire caused it. Pulled one out and bam started working. I did all the basic's so something weird is causing it. Anyone have issues with running crossfire causing something similar? i ran a ping test that recorded and i dropped 8% of all pings. for a whole day. pulled the cards, haven't dropped one since.