SmartWare can't log into non-admin MyCloud account to do a backup

See also Can't login to share using WD Smartware - #8 by NL-UK-Office-OPP
and
Can't log into My Cloud using Smartware to create a backup - #11 by Talal_Alfayez

I am not yet sure that I have an absolute result, but (temporarily) turning off my firewall, after checking & downloading the full suite of downloads from WD, seemed to work.
Odd - there were no alerts in teh firewall.
Still to check - will it work after firewall on & restart? Don’t know. But it is working now!