Error 40 SQL Issue Connecting to Dataflows

[zgrecohw]

Hi - I'm having issues

DataSource.Error: Microsoft SQL: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Details:
DataSourceKind=PowerPlatformDataflows
DataSourcePath=PowerPlatformDataflows
DataSourceKind.2=Lakehouse
DataSourcePath.2=Lakehouse
DataSourceKind.3=SQL
DataSourcePath.3=zrw6n6nljmuutk2l55ymzhwclu-vbiutreee3surcdky5emx347oa.datawarehouse.fabric.microsoft.com;DataflowsStagingLakehouse
Message=A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
ErrorCode=-2146232060
Number=53
Class=20
State=0

[zgrecohw · Accepted solution]

Thanks for all the input - the issue ended up being an update to my orgs Zscaler client that blocked access to the needed endpoints. Issue resolved!

[v-kaiyue-msft]

Hi @zgrecohw ,

I think you can start by checking your SQL Server configuration, and this document below provides some steps to help you troubleshoot these errors, which are provided in order of problem from simple to complex.

A network-related or instance-specific error occurred - SQL Server | Microsoft Learn

Best Regards,

Clara Gong

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly.

[SaiTejaTalasila]

Hi @zgrecohw ,

If you are seeing the issue on the dataflow this might be an issue related with your gateway.

https://learn.microsoft.com/en-us/fabric/data-factory/gateway-considerations-output-destinations

https://community.fabric.microsoft.com/t5/Dataflow/Dataflows-Gen2-not-connecting-to-lakehouse/m-p/35...

I hope it will be helpful.

Thanks,

Sai Teja 

[mattiasdesmet]

Is this a transient issue? Does the Lakehouse SQL Endpoint still exist? Do you have access to it?