To avoid hanging out the system while mounting
NFS shares on boot time add the
bg to the
192.168.1.2:/4T /plex/4T nfs rw,bg 0 0
This will help to boot and in background continue trying to mount in case of getting a “time out”
From the man page:
bg If an initial attempt to contact the server fails, fork off a child to keep trying the mount in the background. Useful for fstab(5), where the file system mount is not critical to multiuser operation.