Diabolical speed tonight

[#1]

Absolute diabolical speed tonight in Central Scotland.
From promised 12Mb - 19Mb I only get  0.81Mb - 2Mb

[#2]

I've just tried to test your line to see what's going on, but unfortunately the router looks like it's off.
It's worthwhile running through the troubleshooting here: http://www.plus.net/support/broadband/bbfaults/
If you're still having problems after this then please report as a fault to us here: https://faults.plus.net