John, my logs were from the omega. I think our cases are similar, in that the client is deciding to disconnect a few seconds after it has successfully attached to the AP. I suspect this issue is going to involve wpa_supplicant in some way. Probably not an omega-specific problem. When I get some time I'll look into it in a bit more detail.

In station mode, WiFi connects to my AP and the Omega can be pinged, but then drops about15 seconds later. To get the WiFi running I have to connect via a USB terminal, edit /etc/config/wireless to change option disabled from '1' back to '0', then run /sbin/wifi and it works fine after that.

Tail end of boot messages:
[ 42.260000] wlan0: associate with 00:11:50:a0:df:9c (try 1/3)
[ 42.260000] wlan0: RX AssocResp from 00:11:50:a0:df:9c (capab=0x401 status=0 aid=5)
[ 42.270000] wlan0: associated
[ 42.270000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 49.210000] random: nonblocking pool is initialized
[ 59.410000] wlan0: deauthenticating from 00:11:50:a0:df:9c by local choice (Reason: 3=DEAUTH_LEAVING)

/etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option hwmode '11g'
option path 'platform/ar933x_wmac'
option htmode 'HT20'
option disabled '0'
option channel '9'
option txpower '30'
option country 'UK'

config wifi-iface
option device 'radio0'
option network 'wlan'
option mode 'sta'
option encryption 'none'
option ssid 'Belkin54g'
option disabled '0'

Version is: 0.1.4 b336