Opening the data load editor in Qlik Sense, the data load connector is greyed out and not clickable. It could also be that in combination with this the Data Connection view is showing a spinning wheel.
Environment:
Qlik Sense Enterprise on Windows
The Qlik Sense Server host has no internet and can't contact the validation server for some data connection or policies in place preventing the Data Connections to connect.
Resolution:
Please test the following URL and reopen the Data Load Editor.
https://yourservername/hub/debug/NOCONNECTOR
If this was solving your issue please follow the article: Data connections in Qlik Sense not visible in Data Load Editor or ErrorCode 11041 / 11043