I've found a solution that works for me. I got a new modem. I was using a Netgear modem and it kept on disconnecting every few minutes. I dug up an old Dlink DIR635 modem and tried it (modem has old drivers in it). Worked and no disconnection, still going on for about 6-7 days.
I then tried a new Dlink DIR835 and was a stable but kept on dropping every few hours.
The Dlink DI635 modem works just fine. I'm not sure why as I didn't change any settings on the laptop.
Maybe the DIR635 has better range and signal strength. I honestly don't know.
I still think Intel has a lot to answer for. With this many people experiencing the same issue they should have come up with a solution. This is not an isolated case Intel, fix the problem.