Cannot remotely connect to Zorin 18X through RDP

General Help
1

i am trying to remotely connect to Zorin, which is run as a VM on my Proxmox server, but it doesn't work
I am using Guacamole for my remote connection and the protocol is RDP port 3389
I am getting the message that Guacamole is unable to reach the RDP server.

I am using Zorin-OS-18.1-Core-64-bit

Under settings/ systems / remote desktop / i have this settings:

image
image1318×1219 99.7 KB

Is there something else i need to do on my Zorin desktop to make it work?

2

Hello and welcome,
Did you activate your firewall ?
Did you try to ping your Proxmox server ?

3

Yes i activate my firewall and from a terminal i can ping to other servers

4

And did you try to disable firewall and connect ?
or doing this

sudo ufw allow 3389/udp
sudo ufw allow 3389/tcp
5

It did not work. I still cannot connect through Guacamole