Dont connect any cheap cable tat you buy from a 3d party it will introduce "noise" and mess up your neighbour's connections. i hope you are sourcing it from VM?
Call back in and tell them you need a Tech to come and install it
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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, 1 WiFi, 1 on PA) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On 250Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.