Instructions
Turn on your PlayStation 3.
Select the icon from the main menu that represents the type of media server to which you are trying to connect. For example, if your media server contains video files, select "Video." For a media server with audio or picture files, select "Music" or "Photo," respectively.
Highlight the icon for the selected media server. Press "X." The PlayStation 3 will disconnect from the existing media server that it is utilizing and will instead connect to the one you have selected.