Issues with "VPN Server" and openVPN

[Schmill]

From everything I had read this should be straight forward, but it doesn't seem to be working for me.

I already had the VPN Server installed, and I want to run an OpenVPN VPN server so that when travelling with my laptop or working away from home I can connect straight into the server.

I used the OpenVPN section of VPN Server package and largely left the defaults:

Then "Export Configuration" and change the SERVER line in the .ovpn file to match my external DNS name.

I've configured the firewall on Xpenology to allow connection to the port, and configured my router to forward connections to that port to the XPenology box.

 

I've then downloaded OpenVPN Connect on my Windows and imported the profile into the client.

All good so far...

 

Then I hit the connect button and.... 

If I continue without the certificate I get a Peer Certificate error:

If instead I press the "Select Certificate" button I get the "Edit Profile" dialog open, and from there the only relevant item I can see is:

 

If I click "Assign" then:

 

What step am I missing?

I feel like I am close, but I've not seen anything about this in the articles I read...

 

Thanks!