I have exactly the same issue with my LinkStation live 320GB.
Worked fine for the past 1.5 years, both from Vista and from WinXP.
All of a sudden, I can no longer connect to the thing.
Ping is OK to the box. However, cannot http to the config service, nor ftp to the data.
The NAS Navigator finds the device on the network, but is unable to show firmware version.
I re-installed the firmware as noted elsewhere in this thread.
This solved the problems: the box is fully operational without data loss.
Apparently the firmware got into an incorrect state, and reinstalling resets that to a known state?
Message Edited by ealgra on 04-03-2009 01:35 AM