Drobo 5n2 install myDrobo

when i want to connect myDrobo app i get a server problem (see picture)

I put my on my router the ip-adres Drobo to dmz and put the firewall off on my iMac but i still can’t reach myDrobo server… what is going wrong

I’m having the exact same issues, hopefully someone can shed some light on this issue…

I’m having the same issue.
¿Someone have ideas?.