Adobe InDesign & Illustrator CC cannot open or save from network

A user with Adobe InDesign & Illustrator CC is having errors opening and saving files to an AFP share. Both client and server computers are Mac OS X; Mavericks on the client and Lion on the server. File permissions on the share appear to be correct, as the user can save files locally and copy them to the network. Also, other non-Adobe applications can read & write to the same network share. InDesign will throw an error opening a file, but you can click OK, try opening the file again, and it will open. But neither InDesign nor Illustrator will save a file to the network. Attached are screenshots of the errors. Adobe support says that this is a network issue, and they do not support reading or writing files to a network share. Any thoughts?
Illustrator-Save.png
InDesign-Open.png
InDesign-Save.png
2knetworksAsked:
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captainCommented:
I don't know much about Mac File Shares, but I have seen similar issues in a Windows environment. This occurs when the user has a Filebrowser (Finder/Explorer window) open with Preview enabled. The Preview option puts a lock on the file and we got similar errors.

At first we checked permissions and it was only after eliminating all possible causes in that area that we realised this user was always using Explorer to open files and left the file highlighted in Explorer therefore triggering the preview lock

As I said, it may not be the same on Macs, but maybe this nudges you in the right direction
capt.
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