An electronic apparatus includes a receiver configured to receive data output through a screen of an external display, a memory storing one or more instructions, and a controller including at least one processor configured to execute the one or more instructions stored in the memory, wherein, based on the external display outputting an image corresponding to content, the controller is configured to obtain data that is output through the image, the data including first data including information associated with the content, obtain network connection information for connecting to a network associated with the content based on the first data, and control, by using the network connection information, at least one of the electronic apparatus and an external electronic apparatus, to be connected to the network.