Thanks - that pointed me in the right direction
When I went to check the port assigned for rsync on the NAS I noticed that service had been disabled !!
Thanks again
STeve
I have already done the sudo synouser --setpw root
and set up the root user with a password
Unfortunately, using the root user gives the same result
I am able to browse and copy files using winscp from the same Acrosync system to the NAS
Steve