Under Dapper, I had the same problem, only able to connect to encrypted networks. I'm using ndiswrapper/Intel neti2220 driver. I can connect to non-encrypted networkds through the standard "Network settings" dialogue.
Under Edgy, network-manager doesn't connect to any networks, encrypted or non-encrypted. It just attempts until timeout. -- Cannot associate with unencrypted networks using bcm43xx chipset (ndiswrapper driver) https://launchpad.net/bugs/42504 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
