Hi,
Looks like previous post on Synctoy closed back about 2010.
Looks like Microsoft Synctoy 2.1 has not been upgraded since 2009.
I have had Synctoy 2.1 in Win 7 HP 64bit freezing on my NAS Dlink DNS 320 using Echo (equivalent to Mirror option).
Have updated my DLink DNS 320 firmware recently with no Synctoy improvement.
Have not found a solution to fix this freezing.
Synctoy works fine on a couple of Sata drives for the same source folders (220GB and 400k files).
I have started using FreeFileSync which seems to work ok on the Sata drives and the NAS drive.
Anyone had similar experience with Syntoy 2.1 or found any other solutions?
Cheers