Power BI Desktop - OpenConnectionError When Connecting To Azure SSAS

[prince]

I get the following error when trying to create an Azure SSAS Live Connection from Power BI Desktop (March 2018).  I have confirmed that my Azure AD account has administrator access to the model.  I am also able to browse the model in SSMS and deploy the model from VS on the same machine.  After creating a new report and entering the server name, I am able to see the model and view the list of available measures, but when attempting to finish the connection, I get about 20 instances of the error below.

[v-qiuyu-msft]

Hi @prince,

I'm not able to reproduce the issue on my side. Please try below tips: 

1. Update the Power BI desktop version to the latest one as ours: 2.56.5023.1021 64-bit (March 2018).

2. Try to connect to the same model in Import mode instead of live connection to see if the same error occurs. 

3. Check if the issue only happens to this specific model. Please connect to another Azure Analysis model. 

Best Regards,
Qiuyun Yu