I understand you have two sockets, but
Were they both in use? What uses each socket? Is the other socket working if you move to hub to it? Have they both worked in the post?
If they were both previously working the cable has to have a splitter somewhere, as there are two locations it’s likely to be in the omnibox on the outside of your property. You could check inside the box to see if this is the case.
Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2