This happened to me too....I was on ADSL1 like most but asked to be put onto 2+ and they switched me over about 2 weeks ago and i was getting about 9mb down (stable) and 766up.....
Then yesterday i was unable to get on any websites or the router admin page so rebooted the router by powering off/on and it resyncs at 8096 down and 256 up......
Back on ADSL1 and with an even lower upload than before...???
Also i have had to reboot the router a dozen or so times in last 24 hours.....the connection shows as active but it does not respond...websites wont open and everythign just hangs until i reboot!
Dont know whats going on...i called them yesterday and my ticket was still open from the ads2+ request so he put a note on for them to call me but as yet nothing....
I will call them again tomorrow and have a moan and see if they actually get back to me....i think it depends who you get 1st line support.....when i called about my original problem i got some guy who was awesome and tier 3 actually got back to me within a couple of hours!!!!
Feel a little better for knowing its effecting other people as it shows it not specifically our connections but a problem there end somewhere....my line stats at 8096 are solid....i am getting 8.5db SNR at PEAK TIMES and 10+ in the daytime....these are plenty high enough to maintain a stable connection...
At least i had the 2_ for about 2 weeks and it was very stable so they cant tell me know that my line is not capable of it....hell i will forego the extra 1-2meg download i just want my upload bacl to 766.....onlime gaming wont be much fun with 256!!!
SKY BROADBAND MAX