job never ends

Hi all,

I have backup exec 2010 r3 sp4 with latest patches installed on a physical windows 2008 server with an ibm ds3200 storage attached. I am trying to backup a fileserver which is vm windows 2008 r2 on an esxi 5.5.
The job is full backup on a backup to disk folder on the storage. The job hungs on random moments without an error or something staying on "running status" .
I ve tried to uninstall and reinstall the agent but with same results.

Any suggestions would be more than welcomed...