I also have this issue and I am using the iwl4965 driver as well. I can get my wireless connection to work through Network Manager, but I need to mess around with it each time I boot the machine. This is definitely not a solution but hopefully it can help in the diagnostics of the bug. Here are the steps I take:
Left click the NM icon and select Connect to Other Wireless Network. Enter all the information for my WPA network and hit okay. At this point, NM shows that I am connected to my network, but it will not give me an IP address through dhcp. I then left click on NM and select manual configurations. Here I choose to set a static ip address since dhcp will not work. After setting a static ip address, I am able to use my network again. Every time I reboot, I have to go through these steps again.
I also have this issue and I am using the iwl4965 driver as well. I can get my wireless connection to work through Network Manager, but I need to mess around with it each time I boot the machine. This is definitely not a solution but hopefully it can help in the diagnostics of the bug. Here are the steps I take:
Left click the NM icon and select Connect to Other Wireless Network. Enter all the information for my WPA network and hit okay. At this point, NM shows that I am connected to my network, but it will not give me an IP address through dhcp. I then left click on NM and select manual configurations. Here I choose to set a static ip address since dhcp will not work. After setting a static ip address, I am able to use my network again. Every time I reboot, I have to go through these steps again.