Connecting to Analysis services in desktop, using basic login

[Moorest]

When connecting to Analysis services in the latest PowerBI desktop using the basic login fields it gives the error message

Unable to Connect: "Details: AnalysisServices: Object reference not set to an instance of an object"

I get the same error when using a random servername or random user/passwords so I'm fairly sure it's not even trying to connect 

This doesn't happen when I use windows credentials option, it either connects and tells me the credentials are wrong or gives a no server error when I try to connect to a random address.

interestingly this doesn't happen in the june version of PowerBI so it seems to have been a bug introduced in the latest versions.

Does anybody know how to get around it in the November release, or if a fix is in the works?

[v-qiuyu-msft]

Hi @Moorest,

Do you mean you connect to SSAS via HTTP. And the SSAS server and IIS runs as different servers as mentioned here: https://docs.microsoft.com/en-us/sql/analysis-services/instances/configure-http-access-to-analysis-s...?

Best Regards,
Qiuyun Yu

[Moorest]

The problem is not a server side issue, PowerBI desktop is just not communicating when trying to connect through basic login.

[v-qiuyu-msft]

Hi @Moorest,

Would you please share some screeshots to clarify how you connect to SSAS in desktop and error message? 

Do mask sensitive data before uploading. 

Best Regards,
Qiuyun Yu