Cannot backup Nas servers

Everything was working awesome with 2010.

I recently upgraded to 2012 (major mistake).

Trying to backup  Lacie NAS servers, I was able to add the file server but when I create a backup job at the selection of files option I get the following error "fail to browse 'servername\sharename'. A communications failure has occured.".

Like I said this was working wonderful with 2010, from the Backup Server I can access the files via windows explorer, I am useing my administrative account for everything.

Thanks

 for any help.. I may have to ditch this 2012 and revert back to 2010 or something else.