Hi All I have had a dataset that refreshed successfully for about 5 months now ... without a problem. The connection is to an on-prem sql server On 14 July '19, the dataset refresh stopped with error "Unable to connect to the data source undefined.". (Furtehr details below) There has been no changes to GW Config, SQL Config, PBI Report, prior to this error occuring. Since the error appeared, I have actioned the following in an effort to remediate the issue: Updated On Prem GW to July 2019 release (was Dec 2018) Checked all connection settings and user/pwd - Manage Gateway is not reporting any problems Created a simply PBI Report with the same dependency on SQL server, using just a single table All to no avail ... I would welcome any ideas that may point me in the right direction to resolve this problem. Thank you in advance Ryan Further Details: Unable to connect to the data source undefined. Please try again later or contact support. If you contact support, please provide these details. Cluster URI WABI-SOUTH-EAST-ASIA-redirect.analysis.windows.net Activity ID 5bf42001-b4bd-4093-9b42-b8015a7b7f5a Request ID da416884-912c-9029-7b50-56cd04d5c178
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