I know this question has been asked before and I have yet to find an answer. Is there a way to completely reset wifi or networking settings of ubuntu 14.04 LTS? I want to reset them, not fix an issue I have.

  • What do you mean exactly with reset? – A.B. May 14 '15 at 18:24
  • What kind of changes you've made to your settings ? – Sergiy Kolodyazhnyy May 14 '15 at 18:24
  • @A.B. Reset the settings to default, purge all changes made, remove saved connections. Serg - There are a ton of connections saved and it was used for a hotspot. The wifi connections turns off and hotspot appears randomly without me doing anything. Also the connection is slow. – Stenli S May 14 '15 at 18:44

To remove your connections from Network Manager run:

sudo rm -f /etc/NetworkManager/system-connections/*; sudo pkill -9 NetworkManager

Just make sure you have passwords for wifi networks that you intend to use before you do so.

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  • Just a thought: First the kill command and then delete the configuration? – A.B. May 14 '15 at 18:54
  • What would this order achieve here? I want to remove all connections and have Network Manager re-read its configuration. Killing NM before altering its configuration is a no-op. – Marcin Kaminski May 14 '15 at 18:57
  • You're welcome, good luck! – Marcin Kaminski May 14 '15 at 19:04
  • Saved my Ass. I was struggling with this freaking wifi issue for days. And this works a 100%. Thanks – TechJhola Sep 18 '17 at 18:38

To delete all connections avaliable to NetworkManager:

echo $( nmcli -t -f UUID con list ) | xargs -n 1 nmcli con delete uuid

(this lists all UUIDs of connections and one by one removes deletes each connection, similar in effect to Marcin's answer , only no need for sudo access)

To reinstall NetworkManager

sudo apt-get --reinstall install NetworkManager

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