A network system is provided for improving network communication performance between a first client site and a second client site, the network system including: at least one client site network component bonding or aggregating one or more diverse network connections; and at least one network server component, configured to interoperate with the client site network component, the network server component including a server/concentrator that is implemented at an access point to a high performing network, between the client site network component and the network server component data traffic is carried to a network backbone of the high performing network, while maintaining management of data traffic so as to provide a managed network path that incorporates both at least the bonded/aggregated connection and at least one network path carried over the high performing network. The system uses quantum key distribution to encrypt the managed network path.