Can not connect to Analisys Services. Sure to set correct connection string

[JohnySta]

Hello everybody .

Im new to Power BI Server and trying to run simple Power BI report with Data Connectivity mode (DirectQuery) from local MS SQL Server .

Using Power BI Desktop (January 2019) report shows data correctly.

After installing gateway and publishing report at app.powerbi.com report also shows data correctrly.

But when I try to run this report on local Power BI Server which uses data from local MS SQL Server I get an error message "Can't connect to Analisys Services. Sure to set correct connection string"

Be obliged for any help, thanks for advance.

P.S. service Analisys Services is already installed
Windows FireWall is already disabled.

P.S.2 moved from another topic

[sgsukumaran]

1. Check if you have access to the SSAS Model

2. Check your impersonation settings. Instead of  windows Ad use domain/username and password

[JohnySta]

"1. Check if you have access to the SSAS Model"

I get data from SQL Server directly using SQL Server credentials .

Do I have to change data location from SQL Server to Analisys Service database ?

(Photo 1)

2. "Check your impersonation settings. Instead of  windows Ad use domain/username and password"

 When I start Power BI Report Server localy, there is my computer user in the upper right screen corner

(Photo 2)

I'm sure, I'm mistaken . But I don't know where. Correct me If You know. Thanks for advance

[JohnySta · Accepted solution]

Special thanks to this video , that allowed me to fix problem. 

https://www.youtube.com/watch?v=G7Qkgg4hwMg

Hope, it may  help others .

I try to describe in pictures for quickiest understanding

[JohnySta]

Thanks everyone.

[JohnySta]