I also have trouble using network manager. I am updated to 9.04. I had
apt-get remove'd network-manager a month or two ago, and instead used a
terminal window to manual type the wpa-supplicant commands. This almost
always works instantly.
The network I'm attaching to is an open-mesh network
I have sony VAIO w/ iwl3945 driver also. Using network-manager-gtk I am
only occasionally able to get associated with an AP. I am using APs
from open-mesh.com.
Looking at the wpa_supplicant.log in /var/log; I saw many timeouts of
attempted authentication. Also, while attempting to associate I