Comment 22 for bug 50214

I have been having what seems to be the same issue. I use MAC filtering and do not broadcast my SSID on my home wireless router. Using xubuntu 6.10 was not a problem, but after reinstalling fresh from the xubuntu 7.04 cd, it initially found the AP and got an IP address during install, but after a reboot I got a link light from the AP but dhclient failed to obtain an IP. I tried dropping and bringing up the interface and multiple DCHP renewals with no success. Only when I turned on ssid broadcasting again from my AP did it work correctly and obtain an IP. I'm using a Netgear wireless card on an older HP laptop.

Chris