I have installed Power BI report server (Aug 2018) and SSAS on two different servers (On Premises), for some reason I can't install active directory (Kerberos and SPN) on the servers, but I have created same account and same password on the servers, Which I use to login to windows, however when I check data source of dashboard, it is successfully connected to SSAS:
but when I browse the dashboard, I get the following error:
"Non-Windows user credentials were supplied for a non-http connection to Analysis Services. The Microsoft SQL Server Analysis Services data extension requires Windows Integrated Security unless connecting via http or https."
Also, I have tried following options for authentication, none of them worked.
<AuthenticationTypes>
<RSWindowsBasic/>
<RSWindowsNegotiate />
<RSWindowsKerberos />
<RSWindowsNTLM />
<Custom />
</AuthenticationTypes>