It's the former. Files work fine when stored locally. Programs claim they are corrupt/unrecognizable when placed on the 343. To be fair, .pst and qdata files were not made to be run on networks and can be problematic, though I've done it before on a less sophisticated NAS. Incidentally, the oplocks were already set to off. Are the permissions you mention relative to the 343, network protocols, programs, or other? Thanks.