I experience the 2nd problem you mentioned except I use ndiswrapper. My chipset is bcm43xx. I am able to connect to wireless networks when this problem arises with network manager by command line (ifdown eth1 && ifup eth1). This is why I think it's a problem with network manager. But, seeing your comments and modifications to this bug I beginning to wonder if we talking about the same bug.
-- Unable to connect to unsecured/unencrypted wireless networks (bcm43xx-based chips only?) https://bugs.launchpad.net/bugs/73759 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
