in discussion Forum / My Book World Edition (white light) » Trouble with My Book Edition II - disk become unavailable
I have symptoms where the machine is on but loses LAN connection after a few days, except it doesn't even respond to ping. Perhaps the ethernet jack shuts down to save power? Here are two tricks I have used to maintain uptime:
Running WD Anywhere Backup.
Mounting the device through sshfs from another linux box.
Oh and for the record, the power supply for my oldest MyBookWorld white light is dying (under-volt). The supply was causing the MBW to reboot while in heavy use.