I’m trying to mount my Synology NAS on a Raspberry Pi 4 with Raspian. I works when I do it the following command:

sudo mount -t nfs 192.168.178.**:/volume1/my_data / /home/pi/mount/NAS

but it doesn’t work with this entry in /etc/fstab:

192.186.178.**:/volume1/my_data /home/pi/mount/NAS nfs defaults 0 0

What am I doing wrong?

Edit: pro tip: make sure you get the IP addresses right so you won’t spend days chasing after a trivial error like some idiot. Don’t ask me how I know. Thanks to @Arlos for pointing that out.