Network error when PDF files been open from network share too long, Adobe Acrobat XI Pro

I've got a strange problem with PDF files that are opened from a networkshare.

Recently we upgraded our Remote Desktop environment from 2008 R2 to 2012 R2. Both the file servers and RDS host got ugpraded.

The problem is that when you have one or more PDF files open from a networkshare between 1-2 hours for editing, the pages becomes blank and you get the following errors

"There was an error processing a page. There was a problem reading this document (109)."

"There was an error processing a page. A number is out of range."

"Insufficient data for an Image"

After that Adobe Acrobat crashes and you lose all the work.

The PDF files are different ones, some of them are scanned and some created.

I did a process monitor check while i had the problem and i can see the PDF files and the result "NETWORK ERROR"

It worked flawless in the old environment.

I logged on the old RDS 2008R2 opend the files from the new fileserver no problems.

On the new RDS 2012r2 i placed the files locally, no problem there either.

Installed a test server with RDS 2012R2 and disabled SMB 3.02 (this also disables SMB2.0 since they are using the same stack) now im running smb 1.5 and now i don't get the error.

The error seems to be related to SMB 3.02, it's not an option to run SMB 1.5 since we are using UserProfileDisks.

Anyone encountered the same problem or have any ideas or suggestions?