Monitor Powersave on = network down!!! 

http://groups.google.com/groups?selm=jYil9.8808%24095.6862%40news1.central.cox.net

Newsgroups: comp.os.linux.networking
Date: 2002-09-28 07:24:18 PST
> The indications I get are that when the monitor goes into powersave mode, I
> loose ip forwarding functionality. When I hit a keyboard key, my connection
> returns.

It's most likely the apmd daemon. Edit /etc/sysconfig/apmd and find the lines

NET_RESTART=
NETFS_RESTART=

For a server, you want these to ="no"

Rex