Cannot mount NFS partition on openSUSE TW

[Budgie]

I have read several recent threads which all refer to similar problems but on this occasion I am getting a different error message.

I have a directory in the NAS which I have created as a shared directory with RW permissions for admin and myself. NFS is enabled with only nfsv4 enabled.
I have created a mount point /usr/local/nas3_data on my local machine.
I am using Yast to create the NFS connection including force nfsv4.
I have deselected Advanced Permissions in Control Permissions shared folders.
I use IP address of NAS and can select the remote directory for the connection but when I try and complete, I get the following error message:-

command '/bin/mount -t nfs -o 'nfsvers=4' '192.168.169.131:/W530_backup'
'/usr/local/nas3_data'' failed:

stderr:
mount.nfs: mounting 192.168.169.131:/W530_backup failed, reason given by
server: No such file or directory

exit code:
32

running

Code: Select all

sudo showmount -e 192.168.169.131

gives me the shared folder (with all the others as expected).
however trying to mount I get this:-

Code: Select all

alastair@localhost:~> sudo mount -t nfs4 192.168.169.131:/W530_backup /usr/local/nas3_data
[sudo] password for root: 
Sorry, try again.
[sudo] password for root: 
mount.nfs4: mounting 192.168.169.131:/W530_backup failed, reason given by server: No such file or directory
alastair@localhost:~> 

Something is preventing the operation but I am stuck. Can anybody spot my mistake please?