So i have been trying to connect the following WFS resource to QGIS 3.4.4.
https://maps.six.nsw.gov.au/arcgis/rest/services/public/NSW_Cadastre_WFS/MapServer
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
Best Answer
That is not a WFS server, they named their service badly.
What you link to is a ArcGIS MapServer, something like a WMS. I can load its raster layers using
Layer->Add Layer->Add ArcGIS MapServer Layer.They do also provide it as WFS though, there is a tiny link at the top of the site which works (apart from being painfully slow) if I add it via
Layer->Add Layer->Add WFS Layer: http://maps.six.nsw.gov.au/arcgis/services/public/NSW_Cadastre_WFS/MapServer/WFSServer?request=GetCapabilities&service=WFS