"Timeout expired. The timeout period elapsed prior to completion of the operation."

[Pocahontas]

I cannot refresh report in Power BI services because I'm getting constantly timeout refresh error. However until previous week it worked without any problems. I have some source tables from ODBC connector, some excel files and also I have plenty of "reference tables" that append and modify these source tables. I've change CommantTimeout and ConnectionTimeout in all my ODBC source tables to 4 hours,

"let
Source = Odbc.DataSource("dsn=xxxxxx, [HierarchicalNavigation=true, CommandTimeout=#duration(0,4,0,0), ConnectionTimeout=#duration(0,4,0,0)]),"

yet precisely after 2 hours my report will stop refreshing and throw this timeout error, each time on a different table though:

{"error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","pbi.error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","parameters":{},"details":[{"code":"DM_ErrorDetailNameCode_UnderlyingErrorCode","detail":{"type":1,"value":"-2147467259"}},{"code":"DM_ErrorDetailNameCode_UnderlyingErrorMessage","detail":{"type":1,"value":"Timeout expired. The timeout period elapsed prior to completion of the operation."}},{"code":"DM_ErrorDetailNameCode_UnderlyingHResult","detail":{"type":1,"value":"-2147467259"}},{"code":"Microsoft.Data.Mashup.HostingError.Reason","detail":{"type":1,"value":"Timeout"}}],"exceptionCulprit":1}}} Table:

I didn't see anything helpful in similar conversations so I need help please.

[v-yetao1-msft]

Hi @Pocahontas 

Can you refresh report in PBI Desktop ? Has a large amount of data been added to the data source recently, causing a refresh timeout ? You mentioned that you have change CommantTimeout and ConnectionTimeout in all my ODBC source tables to 4 hours , but in Shared capacity , the refresh time should not exceed 2 hours. 

You can use the following link to troubleshoot your problem .

Troubleshoot refresh scenarios - Power BI | Microsoft Learn

 Best Regards,
Community Support Team _ Ailsa Tao