RUT241 Connection (OpenVPN Client) to QNAP Server (OpenVPN Server) Using QVPN

Good morning,
I am having trouble configuring my OpenVPN client (RUT241) in order to establish a connection to my QNAP server.

I have already updated the certificates to ensure they are valid, following this tutorial (Update OpenVPN Certificates on QNAP – Help-O-Matic LLC | Technology Solutions, Support and Training).
Therefore, they are located exactly in /etc/openvpn/keys.

On the server side (Linux), I have this configuration.

My question is, what IP address should I enter in the “Network Configuration” parameters?

I have tried entering the server’s public IP address, something like 178.x.x.x, and the address 10.8.0.2/24. I have swapped them around, but I still haven’t been able to establish a connection.

Thank you,
Bruno