Working around networkmanager wireless problems

After upgrading to ubuntu 11.10 I had a few a problems with wireless internet on network manager

* Networkmanager failed to turn wireless back on if it was switched off until the machine was restarted.
* Gnome shells network manager applet is (deliberately) broken and doesn’t allow you to disconnect from a wireless network.

All in all this is quite irritating, as a horrible work around you can use nmcli to manage your connections.

nmcli conn list — shows you all connections
nmcli conn down uuid UUID — takes down the connection

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