Ive installed FC7 x64 on a poweredge 2900 dell server. I have installed all of my necessary servers from yum, and ISPConfig to make admin easier. I am having an issue with the server randomly (and fairly frequently; once an hour) refusing to respond to any requests except for ping. This includes SSH. If a session is open it will drop it, and if not it will not allow you to connect. Same goes for my dovecot and apache servers. The syslogs do not show anything out of the ordinary. Perhaps its an ethernet driver issue causing intermittent connection loss, but brief enough to allow ping through???
Any suggestions on where to start looking from here would be greatly appreciated.