I intend to use the MT300N mango as a client to my Open VPN server running on a Synology NAS at home so that I can access geo-restricted subscription TV when I'm travelling abroad. I'm currently in France; I have the mango behind an Orange LiveBox router connected from the WAN socket on the mango into a free LAN socket on the orange.
The mango client connects to the Synology straight away, but devices connecting to the mango via WiFi can only get around 8 Mbps up or down, which is marginal for streaming TV, especially sport.
I have connected an android phone directly to the orange router and it gets around 500 Mbps down with no VPN and around 80 Mbps through the Synology VPN server using its own VPN client.
I feel I should be able to get in the ballpark of the 80 Mbps download speed the phone gets without the mango with a PC or TV streamer through the mango. Am I right? How can I go about troubleshooting this?