Your down power levels are all too high - will need a Tech visit to adjust.
I will flag for VM to take a look here
In the meantime, switch the Hub off and unplug the power lead for 5' and then reboot it. After 5' see if the down powers are still high +10dBmV is the recommended maximum value
-------------------- John --------------------
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.
I'm sorry to see you've been having some trouble with your broadband service. As jbrennand has correctly advised, an engineer visit is required for this to be resolved.
I've been able to locate your account and have booked the next available engineer visit in for you. To view your appointment time slot, please sign into your online My Virgin Media account - the appointment can also be rescheduled from there if needed.
Do let us know how the visit goes and if you need anything else.