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A few days ago, while I was doing some network configuration tests, I went offline.

At first I did not realize, but all indicators (cpu, memory, ...) even the one of the network manager disappeared from the top panel...

Using a USB live, I reinstalled network-manager, but I'm still unable to see the icon.

The indicators are also running, but they're not visible (same as the network manager).

How can I get them back visible in the top panel?

  • I bring back several icons (included network manager), with 'killall unity-panel-service' here but I'm still unable to see the CPU, memory... indicators – Alvaro de Lucas Oct 7 '16 at 22:18
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I've had the same problem with Ubuntu 16.04; it happens occasionally or when resuming from suspend. A fix that worked for me is to open the terminal and type:

systemctl restart NetworkManager

This fixes it immediately.

  • This sometimes works, but only for the WiFi indicator... – Zanna Mar 20 '18 at 15:57
  • You can also add a script for systemd with the previous code for resume/suspend and It works fine with me but I believe it would require gksudo or something – Ramy Samy Mar 26 '18 at 11:08
  • I had the same symptoms on 18.04 after suspend. Your workaround works. – wotter Mar 19 at 17:15
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There is an open bug with the Wifi indictor icon disappearing in Ubuntu 16.04 since May 2016.

https://bugs.launchpad.net/ubuntu/+source/indicator-applet/+bug/1585886

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    Unclear if it's the same bug - seems only to affect wifi – Zanna Apr 18 '17 at 5:01

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