osmc@osmc:~$ sudo mount -v /mnt
mount.nfs: timeout set for Thu Oct 27 23:10:57 2022
mount.nfs: trying text-based options 'vers=4.2,addr=192.168.178.222,clientaddr=192.168.178.94'
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting 192.168.178.222:/mnt/user/videos
hmm. couldn’t find anything on the server. so what to do? exactly: reboot server.
works angain 
sorry for the trouble…