Why is there a question mark on the LAN icon in Gnome panel?

I have a very normal ethernet adapter. After upgrading to 17.10, and therefore now using Gnome instead of unity, the network has a question mark on a grey network icon. Why’s that?

1 Answer

try this:

Question mark icon instead of wifi icon

Settings > Privacy > Connectivity Checking

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