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SQL Server Named Pipes Provider, error: 40
Hi Power BI Experts, I have been using successfully Power BI Desktop connected to an Access Web App located in MS Cloud service. Everything was running amazingly smoothly until now. The probl...
Go to File -> Options & Settings -> Data Source settings. A window with all connections you have will appear. Select the SQL connection and at the bottom of the window click edit..Update the credentials.
Hope this is your problem
No you don't need to install SQL Server. It seems that something has changed and you can no longer connect to the DB (but I guess you know that). It may not be related to Power BI at all - you need to test it. Are you able (or even know how) to connect to the DB not using Power BI? I would try that first and see if you can connect.