The way Openreach supplies FTTP in ‘retro fit’ areas ( where copper cables already exist) is the FTTP infrastructure is installed to the public footpath, either in a jointbox in the footpath or the top of a telegraph pole…..any further work from the pole or footway box is only after an individual consumer makes an order for their address with an ISP .
It seems fairly clear that a Sky customer ordered service but inadvertently your address was used (a mistake by either the customer or by Sky ) , the fact that Sky sent an Ethernet cable to your address and while you were away Openreach or an Openreach contractor fitted a CSP on your wall support that scenario, if Sky didn’t make the mistake and it was Openreach the cable woukd have gone to the correct address and not yours .
Clearly if you were at home this may have never progressed as far as it has , but it’s not necessary for OR to disconnected the copper to do the work that’s been done , that’s unusual as to use the copper cable to draw in the optical cable ( if doing that were necessary because the duct was congested ) should only be done with the home owners consent (as it obviously disconnects the copper service) and you apparently were not available, they had no reason to suspect the address on their job was incorrect due to the ISP or customer error but still can’t have been told it’s OK to disconnect the copper , TBH , it’s odd if no one was home , they did anything at all .
Presumably repairing your BT copper service will be a reverse of this , possibly using the new optical cable to draw in a copper cable .
Probably not doable in the timeframe , but presumably you have had notifications from BT about genuinely changing your address to FTTP , in my case it was very soon after the work in the street was done I was offered an upgrade , I dare say you have had a similar offer , you could take the opportunity to get FTTP yourself instead of insisting on copper being restored especially as the majority of the work is now done .
As far as the 4th Port being set to LAN rather than Ethernet , thats probably from the factory, if you never used the 4th port you probably never previously checked if the router were set to full fibre mode or not , and nothing to do with Sky ordering FTTP incorrectly for your address rather than their customer , why would it be, BT are uninvolved,
Are your address and this Sky customer address are often mixed up because they are very similar ?
