Can you explain in more detail.
What have you connected to what and with what cables?
Should be a coax from your wall point to the Hub and another to V6. A Cat5e/6 cable from the Hub to the V6 (preferable to wifi). An HDMI cable from the V6 to a port on the TV. And a Cat5e/6 cable from the Hub to the TV - if it is a "Smart TV".
Do you have any splitters, attenuators, etc, in the loop as well?
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John
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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. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.