I have My Book World 2TB NAS installed in 2011: WD20000H1NC-00. Originally setup with Windows XP. Changed system to Windows 7 Home Premium. Same PC, router, etc. Added new Nvidia graphics card (GTX 770, 2GB) but that should not affect the NAS. (PC is Dell XPS 720, Intel Q6600 Quad, 8GB DDR2, 750GB WD HD, 2 ea 160 GB HDs, GTX 770-2GB, DVD, CD/DVD RW, Creative Sound Blaster X-Fi, 1kW PS, & more.
It has Mapped in past OK and remained Mapped. Now it drops the Map overnight. I can reboot the NAS (OFF-ON) or reste and am able to Map the drive (Public and Download) just fine. All data it there.
What’s going on? HDD StandBy is unchecked in MyBook World and should not revert to standby mode when not active - stays powered up.