Committing remote transaction...forever!

I have this small database.The file itself is located in a NAS, connected by cable through my router. 600+ PDF, about 660mb. Whenever I close it, it’s setup to sync automatically…it starts, but never ends, and I have to force quit DThink Pro Office. It used to work well…
I’m getting worried about it…any ideas?
Andé

And just to further clarify…the database is on my internal hard rive and syncs with the NAS…

Please start a Support Ticket. Thank you.