Sudden gateway and server offline errors and scheduled refresh inaccessible HELP please.

[tjhartlineSNHU]

We are running into an issue that is new for about 1/3 of our PBI reports. The issue we have is the scheduled refresh suddenly staying greyed out, and offline errors for data gateways that we have previously had no problem with. Does anyone have any idea what could be causing this?

[MarkDMaddox]

Same issues with all connections fro Power* to Azure virtual gateways,