Refresh Error Unable to connect to Datasource

Hi, JohnKrisa 

It’s my pleasure to answer for you.

I need to ask a few questions to judge: Is it only this data source that failed to refresh? How long has the situation lasted? How long was the refresh duration when it was normal (you can check in the dataset>> refresh history)? Is there a data source other than sql in this dataset? Is refreshing successful using 'Refresh Now' in the service? Is refreshing successful in the desktop?

You can check the solved similar case:Solved: "Microsoft SQL: Execution Timeout Expired - Microsoft Power BI Community

If it doesn’t solve your problem, please feel free to ask me.

Best Regards

Janey Guo

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