Unable to import WFS. It returns error 401. On the same machine QGIS attaches it correctly.
Oto,
Map on its own doesn’t “support authentications” > Authentication comes from the OS and DB. It cannot use Oath in this manner. Does the service ArcGIS Server you show above use Oath?
This is public service but there are issues with some intranet service. Will check on site and let's see what is going on.
What could this error mean when using the same URL specified earlier but with query view?
With XY interchanged:
WFS Service encountered the following issue: Unable to instantiate class for xml schema type: OGCFilterSpatialOperation
Without coordinate flip
Logical operators are not supported by this WFS server