I just did a new FC6 install with madwifi for my athena wifi card. I don't think this is wireless related, so hopefully this is the OK forum. I am a bit of a system config newb.

After much pain trying to get my wifi working, I think I've isolated the problem to not be the driver, but my dhcp config.

At bootup, my adapter [FAIL]s to get an IP. Once I login, I do a "ifconfig ath0 up", manually. Then I can iwconfig, and see that it's found the right network etc. I still can't ping anything.

Now I tried "dhclient". Immediately thereafter, I can't access the web, ping out, see good IP info in ifconfig. After a minute or so, I can no longer get out of my LAN - but I can still access my wireless router (internal LAN - this is why I don't think it's a wireless issue). Typing dhclient again doesn't help (although I get no error return). ifconfig still lists what I would expect my dhcp assigned IP address to correctly be. My windows laptop, on the same desk, is working fine, so the router is OK - and I can even ping my linux box (at the IP output from ifconfig) from my win laptop in this state (internal lan).

I'm embarrassed to say how long I've been trying to get this to work, so any help would be immensely appreciated!

Other info that might help?
/etc/sysconfig/ifcfg-ath0 has these possibly related settings:
BOOTPROTO=dhcp
ONBOOT=yes
USERCTL=no
IPV6INIT=no
PEERDNS=yes
DHCP_HOSTNAME=
ESSID=###MYNUM###
MODE=Managed
RATE=Auto

I have no dhclient.conf file, and my resolve.conf is empty. I have all encryption currently disabled on the wifi.

Nevermind... it is a wifi problem. God knows why it works now, but I mucked around with some alias's and now it's working.

Interestingly, the Fedora docs say that DHCP won't work with alias devices. My madwifi config is SO different (I don't even have a wifi0 at all anymore) than I read about, but it's finally working.