Hi,
I've just bought a DNS-345 and have attempted to install V1.03B06 of the firmware to upgrade it from V1.02 that was installed on delivery.
The experience has not been good!
Once I had installed V1.03 could no longer see or access any of the fileshares I had created using the V1.02 firmware. I was also unable to see any fileshares I created using the new firmware, either from Windows 7 or from the user interface on the Drive itself.
The funny thing was that I could see all the folders if I accessed the drive using MyDLinkCloud but not on the drive itself.
I tried an earlier suggestion of reverting to V1.02 and reinstating the fileshares and reverting to V1.01 before upgrading directly to V1.03 but that had the same problem.
I've now reverted to V1.02 again and all seems to be working fine.
I think D-Link need to look at this release of firmware and their testing processes.