I am currently running the developer preview of OSX Mavericks, I know running Beta I can't expect support, but when trying to configure Time Machine Backup to MBL NAS I get the following Error:
There was a problem connecting to the server "My Book Live".
The server may not exist or it is unavailable at this time. Check the server name or IP address, check your network connection, and then try again.
I know its not the MBL as worked with Mountain Lion, but have tried with multiple Mac Devices, I suspect Apple have changed something in Mavericks, (I know they have made SMB the default over AFP for file access, not sure how this affects Time Machine) but thought I would post on forum to give the WD guys heads up that they may need a new Firmware for Apples next OSX relase.