Twice now I've experience a noisy line, hissing, crackling and popping.
Both times if the engineer has "fixed" it by replacing the master socket. It's just happened again, a few month after the last time.
Any advice on what the problem could be, and what I could ask to be done to resolve this once and for all?
What could keep making master sockets cause line noise?
ZeN Unlimited Fibre 2