Gateway (version 3000.110.3) Connection string is not supported

Hi team,

I need your support with a error message from configuration data source when I try to add a new data source.

I have some reports which are working very well but today I try to add a new connetion to the gateway. The diference with the others is that this file or folder is into a map drive (Z:\). With Power Bi Desktop I havn't problems is working the conection but I want to schedule it like the other reports. I have invetigated and I found that I need to type de UNC path (\\server@48317\deparment\Files\) and I did it but I received the message: connection string is not supported. I´m not sure if it is caused by the '@'.

Is necessary to use the '@' because the file is into a Sharepoint Server 2019, and it uses this port.

Thanks for you time! Regards,