painfully slow internet
Not a clue I'm afraid - when mine failed I just had to replace it 
Quote from: axlstod hi again just did the line noise test now and i didnt hear any crackling or noises im pretty annoyed though because ive broken my extension cable to my loft which is where my xbox is dont suppose you know how to repair a snapped cable?
What kind of cable?
If I read that correctly, it's some kind of 6-core cable?
Sounds rather weird.
However, assuming its a telephone cable, ...
A few years back I wired in an extension telephone wire (about 15m) - however because the bit of wire I had wasn't long
enough, I soldered all the wires to their partner, wrapped insulating tape round each core and also the whole thing.
This was sufficient to be able to run 2Mbps fixed rate broadband.
I'm sure it would work for a voice line - and possibly for very slow internet.
Have you considered wireless?
Sounds rather weird.
However, assuming its a telephone cable, ...
A few years back I wired in an extension telephone wire (about 15m) - however because the bit of wire I had wasn't long
enough, I soldered all the wires to their partner, wrapped insulating tape round each core and also the whole thing.
This was sufficient to be able to run 2Mbps fixed rate broadband.
I'm sure it would work for a voice line - and possibly for very slow internet.
Have you considered wireless?
If you have not done it before, crimping tools are very tricky (and not cheap) for the first few crimps