Reporting Service

Reporting Service: DataSourceDisabledException

English: During the operation of our Reporting Service Server, one of our clients reported accidental reports unavailability. Following is the screen capture on his browser : Accoding to server maintenance history, there was no action performed on that server. So, what can caused this sudden unavailability?  To investigate the issue, we activate ASP.NET debuging in web.config, and browse to the report page. And now we have more precise information that Microsoft.