How connecting a ArcGIS feature service with a authentication/username? The link looks like this: https://services1.arcgis.com/code/ArcGIS/rest/services?token=rzJ3BnGbFKOyS7vaMeXnD_yuS_DMm4pTV3EOsf Notice the token. Trying this, several times, in QGIS 3.14, I get a failure every time. Connecting without authentication it isn't a problem.