Broadband speed

[#1]

For some odd reason my broadband speed has dropped by nearly 50%
http://www.mybroadbandspeed.co.uk/results/38355971.png
Is there  something going on at Plusnet we are not being made aware of ? (ie Too many customers using the service ?)
NB: My router is turned off everyday, something I have done for over 2 years so unless something has changed I can't see that this is the cause of the problem.

[#2]

and the BT speedtest result is?

[#3]

Have a look at my post "160kbps".... I agree - something is clearly not right!