Been following this with interest. Could all this work be the reason my broadband is unstable? Have a fairly new router, but connection seems to drop at least once or twice every weekend and often around 5.30 weekdays. My postcode's on the "yes" list though doubt I'd pay more for new service (having abandoned BT years ago).

Another puzzling thing - broadband speed varies wildly, usually about 7mb but about once a week around 15mb, and - once only - 39mb!