Qnap NAS drive mount problem

I found a partial solution to my problem, following this post (20/23):

I set to NFS the share in Volumio, and a shared path in my QNAP NAS.

But there is a problem.
Volumio doesn’t recognize the NAS folder when NAS wake up itself.
If I reboot Volumio when the NAS is active, the NAS folder is correctly recognize

Any solutions?

My goal is not keep active 24/24 the NAS as I wrote some post up before

Thanks