Western Digital WD TV Live Plus HD Media Player

My HD Media player was working well with the computer network. It is connecting to the internet but the Media player is   no longer  seeing the computers.  The firmware is uptodate.  Any advice welcomed

Try resetting the WDTV by pressing the side button with a paperclip / cocktail stick. Press for 1 second and then release with the unit on and fully booted up. The unit should reboot.