Simply scanned the new units to see what ports are open:
al@alex490:~$ nmap -p- 192.168.nnn.nnn
Starting Nmap 7.60 ( https://nmap.org ) at 2020-11-25 18:41 GMT
Nmap scan report for MyCloud-R6GNH47Y.lab.tsew.net (192.168.0.132)
Host is up (0.0011s latency).
Not shown: 65527 closed ports
PORT STATE SERVICE
80/tcp open http
139/tcp open netbios-ssn
443/tcp open https
445/tcp open microsoft-ds
548/tcp open afp
8080/tcp open http-proxy
9999/tcp open abyss
33284/tcp open unknown