Here’s the problem: you are trying to connect your Chromebook to a wifi network like the one at Dalhousie University that uses the LEAP protocol. That protocol is likely well and good if you use an up to date Windows or MacOS computer. But as I found, it’s no good for the Chromebook I had because it did not have LEAP as an option. What to do?
Well if you get into the network settings and you go with the EAP-TTLS with the settings above, you can get your device to connect. (The above does not show the user I’d and password fields, but you will need those).