I discovered the problem yesterday. It last worked a month ago. When I log in to the Unleashed Dashboard and open Admin & Services, all fields are empty in local browser. Have tried local browsers Micrsosoft Edge, IE and Google Crome with the same problem. It is also not possible to register anything new.
However, it works when I try in IE in our terminal server, Windows server 2016.
I do not know how long we will continue to have the terminal server, so I need a solution to be able to administer our Ruckus Unleashed, Zonflex R310 Series in local browsers.