[Gfoss] QGIS 3.4.1 - unable to add wms layer (in 2.x worked)

Hi,

please try this WMS link:

http://webapps.comune.trento.it/ogc

On QGIS 3.4.1 I can see the layers list, but I cannot add anything.
In QGIS 2.x it worked perfectly.

How can I do it?

thank you

--
It means your future hasn't been written yet. No one's has. Your future is
whatever you make it. So make it a good one, both of you.
  -- Doc Brawn, Back to the Future III (1990)