Hello all, i'm not unfamilliar with networking, but now i'm stuck.

I'm installed OpenVPN on my C5400. So far so good. 

I installed the OpenVPN app om my wifi connected Windows10 laptop and it is up and running.

When opening the VPN tab on the C5400, i can see the laptop is connected.

But, when i want to connect the laptop to the c5400 in the network, i get a connection error 

Also. the Popcorn a300 in the same network gives a connection error

when i disconnect the OpenVPN app on the laptop, i can see both the C5400 and Popcorn as a mediaplayer icon, but cant connect.

I'm missing some points, but wich?

Thank you in advance, Peter