My MyBook World Edition White Light has worked fine, attached via my webmodem to my Mac Lion computer, for a year. When I added a second NAS drive from another company to the setup last week, the MyBook went all wonky. PCs using my modem could only occasionally see the MyBook, and it dropped on and off the Mac’s list of connected servers at random intervals during the day.
On the advice of my ISP I attached an Ethernet switch to the DSL modem, and attached both NAS drives to it. This resolved connectivity to both drives – with one exception. When the Mac goes to sleep at night, there’s a 50/50 chance it loses connectivity to the MyBook. Logging in through Connect to Server does not work; going through the web interface to the MyBook admin page does not work. The MyBook must be physically restarted for the Mac to reacquire it.
What do I need to do? As I understand it, the webmodem assigns its own IP address to the devices on the switch’s port – and both the WD and the new NAS drive are at that address. How do I keep the MyBook from dropping off the system?