Issues with Multiple OPD Gateways

[Anonymous]

I have ODP gateways installed on two servers. One is a SQL database and the other is a file server. I am trying to access sources from both gateways in one query. One source is a table from the the SQL database and the other source is an excel workbook from the file server. Both gateways and sources are functioning on my PBi site. If I load them in seperate queries and publish independent of each, OPD Gateway is available and refreshes. If I try to add the other source and publish it as one dataset the option for OPD Gateway goes grey and is unavailable.  I was able to make it work if I loaded the workbook first but that is not ideal as i will be adding more workbooks and tables later. It makes no sense why it would work seperately and not together.

Any ideas what may be causing this to occur?

Thanks

[Seth_C_Bauer · Accepted solution]

@Anonymous If I read what you said correctly, you got the refresh to work if you loaded the Excel data source first?... That would be new, I was always under the impression (and why I think you are having the problem) that all the datasources for a dataset had to belong to the same gateway in order for you to be able to refresh. I'm not aware of any "split gateway" scenerio working for a single dataset.

[Anonymous]

 @Seth_C_Bauer you are correct. The issue was really a result of the data source using a copied file path instead of using UNC to create the file path. After I switched to UNC (Universal Naming Convention - \\servername\sharename\path\filename)  the datasource was recognized by the gateway installed on my SQL server and became available.