How to publish to an on-premises Report Server using alternate credentials?

[mrusu]

Hello,

We have a development virtual machine located on a different domain. When trying to publish to the Report Server we get an "Unexpected error encountered"

The reason seems to be that the virtal machine user cannot be granted access to Report Server (different domains).

My question is: would be possible to specify different credentials when publishing? 

Note: the Report Server is accessible from the virtual machine, using a web browser (Firefox, etc) but it prompts for credentials. Once entered, the site is fully accessible.

[mrusu]

Please note this is Power BI Desktop RS (Report Server)