So i have been trying to connect the following WFS resource to QGIS 3.4.4.
It connects without problems, lets me add the layer to the map without complaint but the layer is actually empty. When I try to open the attribute table it says "Loading features for layer XY 0%" and never progresses. This relates to the standard AddLayer/WFS tool. I have also tried to add it via the AddLayer/ArcGIS Feature Server tool. since the resource seems to lie on a ArcGIS Server, but it replied with en error message "Failed to retrieve service capabilities: Network error: Error transferring http://maps.six.nsw.gov.au/arcgis/services/public/NSW_Cadastre_WFS/MapServer/WFSServer?f=json - server replied: Bad Request"
The resource loads without problems in ArcGIS