Power BI Refresh Issues not Connecting with SQL Server

I have a problem with several of my reports with the same database located in SQL.

I keep getting the error message: Failed to update data source credentials: Login failed for user 'domain\account' 

I have tried to delete the source and update the credentials, but nothing works. In PB Desktop, everything works great. My credentials also work fine when connecting to SQL Management Studio.

I researched many options on how to fix it, but nothing worked. Please help!