Re: Power BI authentication error for on premise data sources

Hi ,

It seems that you the on premise data source (file) exists on the on-premise server domain instead of Azure VM, right?

In your scenario, you need to make sure Azure VM network can communicates with on-premise server domain network. You need to configure VPN firstly. For more information, see:

Step-by-Step: Extending On-Premise Active Directory to the Cloud with Windows Azure – 31 Days of Servers in the Cloud – Part 20 of 31

Connect an on-premises network to a Microsoft Azure virtual network

Best Regards,
Qiuyun Yu