the one on the wall is a standard areal socket - the twin cable looks as thouhj it will fitthe hub but i doubt it will be useful as i think thats ssy - if shy was installed after VM then they likely cut the VM cable to feed there own from outside
start with this - hopefully you will find a box outside but expect the incoming cable to be cut - if so you need a tech
not all installs have an internal box
start outside and look for the external wall box - 6" square ish usually on wall facing road or pavement - brown or grey usually - follow any cables that come from it and go inside - if there are non look inside opposite external box as they may just have drilled through wall - as said it may just be a cable rather than an internal wall box
if you find a cable you need one of these to attach the cable that came with the quick start kit
https://www.diy.com/departments/tristar-data-cable-coupler/571706_BQ.prd
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Tony.
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