When the next Tech visits - dont let them leave until you reboot the Hub, let it initialise (5') and look at the upstream data (with them looking over your shoulder) and check all qam's are at 64 and the Up powers are in range! If not then you will need a "Senior Tech/Team" visit to investigate why its struggling
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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.