Over the last two-three weeks, my connection speed has been fluctuating wildly, ranging from the normal 6+Mbps to virtually nonexistent (even Plus.net and Google were timing out).
I don't think it's a contention issue - it seems independent of the time of day and at time of posting - 0545 on the morning of the 27th - it is clocking between 470 and 740 kbps, apparently at random. I'd wager contention isn't a factor at such an ungodly hour. Pings in CoD4 have gone from ~50ms to ~100ms for UK servers and are pushing 200ms to Blizzard's Paris servers (when the connection isn't just falling over).
My hardware hasn't changed in four months, during which time the connection speed has been stable at ~6Mbps so I'm pretty sure it isn't that. Equally, none of the network drivers have been changed.
The only thing I can think of is that I live in Scotland and we've been having some rather rough weather of late. Is anyone aware of high winds and moderate to heavy rain interfering with ADSL lines in this way and has anyone else in the Perth area been having similar issues?
