has intentado las opciones?
en el server vpn
1 IPv4 Local network(s)
IPv4 networks that will be accessible from the remote endpoint. Expressed as a comma-separated list of one or more CIDR ranges. This may be left blank if not adding a route to the local network through this tunnel on the remote machine. This is generally set to the LAN network.
2 Inter-client communication
Habilitando.
3 Firewall/rules
Permitiendo las redes entre si