Samba only one way connection

I cannot connect via ssh to the desktop

Ok, I am burnt out with this and have to do other things.
I will have to come back to this another time.
Thanks.

from desktop

OK, happy to help when needed.

rpcinfo was just showing it for local host
rpcinfo -p 192.168.0.10 would report for the notebook

Why do you write from desktop?
That test was SSH into the OSMC and then connecting your Notebook.
The idea was to run showmount and rpcinfo on the Desktop towards your Notebook.