Azure cube connection issue

I have a number of PBI dashboards each using Azure analysis server cubes and up until today they all ran fine. Today, I try to open them and I get the following error message "Windows authentication...

Dashboards

Gateways

Report Server

C-Jac

Helper I

5 years ago

I have the same issue, just discovered today. I can't even make a regular import when trying to connect to Analysis Services.

I cannot open previous created reports which are connected to Analysis Services.

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