NIS 2012-Large file transfers to NAS fail after x%

Hi,

 

Yesterday I updated to NIS 2012 and suddenly found that large file transfers (a couple of hundred Meg or more) to my NAS fail at random % complete points.

 

My Media Centre recordings are moved to my NAS daily and was no problem under NIS 2011. I have uninstalled NIS 2012 and proven that the Link is fine. Reinstalled & updated NIS 2012 and the problem returns.

 

So far the problem occurs with drag & drop and robocopy.

 

Has anyone else found this issue.