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Running 14.04 on a Samsung N150. I am having the same problem as described in this post

To reiterate, this is NOT the 'adapter sleeping' problem; it sees the network(s) and starts trying to connect immediately but never succeeds. Deleting the network and re-connecting doesn't work. The only solution I've found is to reboot.

One update to this (still not got anything to work, but thanks for the pointers): When it is in the failing state, if I turn off the wireless router, that network continues to appear in the list of available networks, and the computer will try and connect to it! If I delete it from the list of networks then it does disappear. When I turn the router back on then it reappears but I can't connect to it. Don't know if that is a clue at all?

Community
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Iain King
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3 Answers3

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I have had the same problem and

killall wpa_supplicant

only worked for a while before it became totally useless.

After some update the resume thing caused a clickpad failure along with the wireless thing and installing fglrx fixed both issues:

sudo apt-get install fglrx
user2949483
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I have had the same problem since upgrading to 14.04, and have yet to find a solution.

Upon system resume, after typing in Ubuntu pwd, it attempts to reconnect to the wifi network. It says "connecting" and eventually brings up the credentials/pwd prompt for that wifi network (which has a saved pwd, which hasn't changed, and is still correctly entered), but it never reconnects even if I retype the wifi network's pwd. However, it can successfully connect to the other wifi network, just not to the one to which it was connected before closing the lid.

I tried restarting network manager, nmcli nm, removing lightdm, adding SUSPEND_MODULES= to /etc/pm/config.d/config - which worked once, but only once ([http://ubuntuforums.org/showthread.php?t=2004690]), and several other suggestions, but nothing works other than a reboot (occasionally logging off worked too) or remembering to manually disconnect from the wifi network before closing the lid.

What a pain...especially for non-techies who also use this computer. I'd really appreciate any suggestions which might actually solve this problem once and for all - thanks! :)

zondu
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So, I just posted that nothing had worked in a comment, but then I read this answer which suggested some things, and at the bottom this:

sudo killall wpa_supplicant

That did it. I was then able to reconnect to my home wifi network. Funny thing is, after rebooting and trying the process again, I did not have to use the command, reconnecting after suspend/resume just worked. :/

If you needed to run this command each time though, you could combine the command above with this other solution which suggests a bash script to run after each wake.

Good luck.

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Jordan Kasper
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