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I have a machine that has a wired connection and a wifi card, running Ubuntu 14.04 64 bit. I'd rather leave wifi unconnected all the time, but have the option of turning it back on whenever I want, which means leaving the network password saved, but disabling wifi. At the moment, I can go to the network menu in the dock and uncheck Enable Wifi.

The problem is that after restarting, and sometimes just after the computer has been on for a while, that option simply re-enables itself and I get a wifi connection message.

  • How do I get that option to persist?
  • Why does it switch back to its default all the time?

I did have a script that force restarted networking on wake to get rid of another issue. I've commented that out so it doesn't do anything anymore, but still the issue persists.

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It looks like a bios option: in my laptop I can flag my wifi card as "last-status" instead of enable/disable. That's only if you want to disable the wifi card.

Otherwise it's enough to disable the flag automatic connection by Network Manager on your wifi connection SSID.

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  • Oh, man, I feel a bit dumb now. I totally missed that option in the network settings. I've unchecked it for now, and I imagine that should work. I will however also investigate the BIOS issue and report back when I get a chance to. – Excrubulent Oct 13 '14 at 11:54
  • that's happen. But now I know that's possible communicate to Network Manager via cli, that I didn't mind, so for me yours was an useful question :) – feligiotti Oct 13 '14 at 12:59
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This can be accomplished easily using nmcli.

Add the following line into /etc/rc.local prior to the exit 0 line:

nmcli nm wifi off

You can arbitrarily re-enable the wifi either through the network manager dropdown menu like you have been turning it off or by running the following command from cli:

nmcli nm wifi on

Commands placed in /etc/rc.local are ran automatically as root whenever your system boots up.

For more information on nmcli and its capabilities, simply run view the man page for it with man nmcli.

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  • Thanks, I would however like to avoid using commands. I'd like a system that simply respects the convenient menu toggle that I'm currently using, rather than requiring the editing of a script. I'd upvote you, but I can't. gio900 provided a better answer for my situation. – Excrubulent Oct 13 '14 at 11:53

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