Power BI On-Premises Data Gateway is a windows service (PBIEgwService) that moves data from on-premises to the cloud, and also is used by Power BI Report Server.  The data gateway has been failing nearly daily. I’ve changed the service settings to restart upon failure with a 3 minute buffer. If this does not resolve the issue I might set up a heart-beat process that checks the health of the service and if it’s ever not running it will start it.