Search these Fora. Lots of threads that conclude that to sort VPN issues you should put the Hub into modem mode, get your own wifi router and connect to that on ethernet or wifi.
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John
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I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.