A couple days ago, one of the web applications threw the following error while generating a report. After some research, I found out that the Crystal Report Application Server Service is not running. Apparently the application server was restarted and the startup type was set to "Manual". To remedy this problem:
1) Go to Start, Control Panel, Administrative Tools, Services
2) Right-click the "Crystal Report Application Server" Service
3) Change the startup type to "Automatic"
4) Click on the Start button and hit OK to close the dialog box.
By the way, I'm using Crystal Report v10.
Failed to connect to server "xyzserver". Error returned from Windows Sockets
API : 0.clientdoc.dll COMMON GENERATE ERROR!:
Could not open the report file (abc.rpt); The report path is c:\myreport\abc.rpt