Forum Discussion
Copy Data with VNET gateway error
Hi there,
It is a SQL Server in a private network, reachable througout my VNET.
LIMIT 1 / TOP 1 still gives me directly the preview but the copy activity still stays in transfer state for a few minutes before giving the same error message.
Hi TK12345
Thanks for the update and for validating all the suggested troubleshooting steps.
Since the source preview is working successfully, even minimal queries such as TOP 1 are returning data correctly, but the Copy Activity consistently fails during the transfer/write phase to the Lakehouse, this behavior appears to be related to the VNET gateway network path, OneLake/Azure Storage connectivity, or a backend Fabric service issue rather than the SQL source itself.
As the issue persists even after recreating the pipeline, connection and Lakehouse, the next recommended step would be to raise a Microsoft Fabric Support and Status | Microsoft Fabric for deeper backend investigation.