New here - so please excuse if I've posted it in the wrong place.
I have just moved into a property where they have an old master socket (looks like an NTE5 socket) downstairs which feeds an extension socket in the loft. The extension socket in the loft is the new type BT filtered master socket, so my broadband router is in the loft. It doesn't work with the filter in the socket downstairs. After doing some research I bought an MK3 faceplate and tried with that without touching any cables downstairs and no luck.
What I'm trying to do is get my broadband router to plug in the socket downstairs...without paying £150 + VAT to Sky for moving the socket. Any help would be appreciated. Have I bought the wrong faceplate?