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I recently upgraded my toshiba satellite Pro L640 laptop to ubuntu 16.04. After resuming from suspend the network manager stops working, I am unable to see any wifi routers within range. I have to go to the terminal and issue this command sudo service network-manager restart to get it working. Any ideas why it is happening?

Imran Ali
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  • My macbook was running 16.04 and I didn't have this issue but following some recent updates, I'm now having this issue as well. – ilyas patanam Jun 02 '16 at 17:57
  • This is a duplicate, a solution has been suggested here: http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-after-16-04-upgrade – lefterav Aug 17 '16 at 18:03
  • try this: http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-after-16-04-upgrade – Chezi Zarur Mar 19 '17 at 17:37

2 Answers2

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I am working with ubuntu mate 16.04 and the same problem. This is a bug, and you can resume by running

sudo service network-manager restart

Waiting for this bug to be corrected, I have wrote the line

service network-manager restart

(without sudo) in my /etc/rc.local file.

This way the command is launched each time I start my session... To modify the file, we can edit with something like 

sudo gedit /etc/rc.local

Hope network-manager will be updated soon.

anonymous2
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Phil
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If you are getting an up/down (Ethernet) icon instead of wireless, no wifi SSIDs appear in the list or connection drops (even while applet shows connected), this is probably the bug, and is still being processed :(

Henry J. Douglas
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  • Yes, it is as you described – Imran Ali Jun 03 '16 at 14:54
  • so what's the solution? – Pierre.Vriens Jun 03 '16 at 15:06
  • I've been using some of the workarounds I found in other "no wifi after suspend" questions, but I wouldn't recommend them now, since they are releasing new fixed versions of the network-manager package quite often to solve the problem. It should be fixed soon, I think. Anyway, you can try this script to restore connection automatically. It automates "sudo systemctl restart network-manager" and check this answer too. – Henry J. Douglas Jun 03 '16 at 15:23