I am quite good with setting up WiFi connections and network connections. And I do have a long enough Ethernet cable that will reach down to or up between downstairs and upstairs, thanks to the first installer he left me the longest one which I used originally before WiFi was available.
It is the coaxial cable to the second box that might be the problem, at the moment the cable goes into a box on the wall
then is split into internet and TV. It is the second box TV connection I might have problems with.
Hi regarding alterations to the coxial you will need an engineer as they use specialist cable, and altering the length will affect signal levels, which means adjustment between the street cabinet and your box. Regards Micky