I was able to install 19.04 on my old Chromebook, and can connect to an ethernet port on my wifi router with a usb-to-ethernet router. I know that the wireless is working, because when I click on the network manager widget in the system tray (lower right-hand corner of the screen), it lists the various wireless networks in my neighborhood. But my wifi is “hidden,” I don’t broadcast the SSD.
I haven’t been able to find out how to add a hidden wifi network so far. I’m sure the capability is there somewhere, I just haven’t stumbled on it yet. Can anyone point me in the right direction?