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I installed Ubuntu 18.04 right now and after connecting to the internet instead of a network icon there is a question mark. There is no network issues, but that question mark is annoying.

Image of Ubuntu 18.04 question mark icon in place of wifi icon

  • See this bugreport - first seen on Ubuntu 14.10. Is it related to your issue? Could you add screenshot to your question? – N0rbert Apr 28 '18 at 19:34
26

Settings > Privacy > Connectivity Checking

Set it OFF. (Then, restart your WiFi connection, thanks to @Dante's comment below).

This is the same fiasco as Microsoft's NCSI (Network Connectivity Status Indicator), a God damn false negative to try ruin your mood.

And, yeah, it would be checking some URL like that one: http://www.msftncsi.com/ncsi.txt

  • Thanks but it didn't work. – Dante Apr 28 '18 at 21:05
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    Hey wait a minute. After disconnecting and connecting again it solved the problem! – Dante Apr 28 '18 at 21:09
  • @dante is the answer the solution, or was it disconnect and reconnecting? The seem very different and if so, this should not be accepted answer (although can upvote since it helped you find the answer) – Oliver Jul 23 '18 at 18:07
  • @Oliver This answer is the solution but this change requires that you restart your computer. – Dante Jul 24 '18 at 7:49
5

I've had that issue with other versions of Ubuntu. I had similar Theme issues after upgrading to 18.04.

Change the icon theme. You can do this with Gnome Tweaks.

It's not installed by default. Install it with:

$ apt install gnome-tweak

From there click on Appearance -> (click) Icons. Then select a different theme.

I've seen occasions where changing to a different theme and changing back sometimes resolved a glitch that was happening with the current preferred theme.

  • I really don't like installing another software just because of that. I installed Ubuntu 18.04 on two laptops and I got this problem on both of them. – Dante Apr 28 '18 at 19:46
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    The gnome-tweak tool is a significant part of the gnome environment. You can alternatively change the theme and icons from the commandline. This is the commandline for changing the icon theme: gsettings set org.gnome.desktop.interface icon-theme 'YourIconTheme' I understand the thought of installing other applications, but in this case, this tool really is a significant part of the environment. I'm really surprised it wasn't installed by default. You can view the themes with this command: ls /usr/share/themes – L. D. James Apr 28 '18 at 19:50
  • I see but I think the developers should fix this problem :-) – Dante Apr 28 '18 at 19:54
  • I installed Gnome Tweaks and only Breeze icon theme works! Unfortunately I don't like it :-) – Dante Apr 28 '18 at 19:57
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    They will. To me, they are good for listening to bug reports and feature request. Put in a feature request at Bug reports and Feature request. I'm sorry that you don't like the first choice you see. But I'm glad it works. You might also try a few different Application Themes and Icon Themes. Did you try the Adwaita theme? – L. D. James Apr 28 '18 at 19:59
2

I had this issue, along with a very slow internet connection - due to the fact that I had used expressvpn, and I recently uninstalled it.

The problem was that uninstalling with apt remove expressvpn didn't clean up after it completely, so I still had a broken expressvpn service trying to run in systemd.

After I ran apt purge expressvpn, everything started working nicely, and the questionmark over my WiFi icon is gone.

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