Originally Posted by theducks
Right below Metadata Source is Metadata Writer. That was one of Kovid's questions
The content server is a Web Server interface built into Calibre (and obviously not enabled as you would have needed to do a few easy steps to set it up for use) that allows a device with a web browser to access books on your LAN (Router configuration is needed for WAN access)
into metadata writer are all enable.
thanks for your explanation