DNS-320 or DNS-320L? If it is the L than you would be better asking on the forum for that model.
As it stands Volume_1 is the root volume and I would expect the P2P you are talking about to be a folder off that root. If that is the case then opening Volume_1 should show all the folders contained therein. If the P2P folder does not show up it might have the hidden attribute set - you can check this by using something like FileZilla and logging on to your nas, assuming you have activated the FTP server on the nas, this will show all the attributes set for each folder on the nas.
Dear Ivan,
Many thanks for your time answering. Correct, I reffer to the L product, I misplaced my post.
However, as I have caught your attention, maybe you can help me out.
I will explained better the situation:
When I connect the NAS, in my computer the folder that appears is Volume_1, but if I enable the P2P, then an additional folder is created, so when you access to the NAS in my computer, you find 2 folders, one is Volume_1 and the other is P2P, P2P folder is not inside Volume_1.
I downloaded the Dlink Android app, but when I access to the Nas through the app, only Volume_1 appears, P2P does not show.
In the configuration of the NAS I share also the P2P folder with no luck in the APP, however when I access in my computer or online via MydLink page it shows.
Very strange