We have Power BI Report Server. When we go into Power BI Desktop, do File Save as, send to Report BI Report Server, and submit the report, we have :

Saving to Power BI Report Server
An error occurred while attempting to save the report to Power Bi Report Server

Thus, we test locally. We save the file first on the local drive and then use the Power BI portal to upload the report. When we go in Upload, select the file, we have this :

Une erreur s'est produite.
Une erreur s'est produite lors du chargement de votre fichier .pbix. Vérifier que le fichier n'a pas été endommagé et que l'extension de fichier correspond au format du fichier.

Obvisouly, this is a security issue. I have seen a lot of situations like this on Google search. Our Power BI Desktop (RS) is synchronized with Power BI Report Server. We try to send the report across the domain. What is the best pratice, as far as service account creation at the PBRS to make sure we do not encounter such situation?