What model is it? Superhub, SH2 or SH2ac are the old models (printed on the Hubs sticker). How are you connecting the V6 to the Hub - ethernet or wifi or powerlines ? I assume the tablet is by wifi - do you know whether it should be connecting to the 2.4 or the 5 GHz network?
-------------------- 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. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.