PLUSNET SLOW DOWN
I too have been under the same reduction in my overall speeds since i first took out FTTC 24+ mo. ago..
At first it was a gradual degradation in my downstream speeds however over the past 5-6 months the speeds have dropped off substantially as compared to when my line was first enabled.
I was able to actually achieve 69+Mbps and now I am hitting about 43Mbps.
My upstream on the other had has seen a perceived slow down and actual tests carried out over on bt wholesale speed test has almost halved my upstream to 11Mbps from about 18.5Mbps
I have raised this issue several times with Plusnet but only after my more challenging questions asked went unanswered in my support tickets.
In relation to actual CDN from various couriers I have noticed vast differences in speed throughputs Apple CDN being one such network.
It really saddens me to feel like PN have lied to me about what they are able to do to solve this matter and what they are unable to do to solve this matter..
I said if my speeds were to continue to degrade on their current trajectory then it would most definitely trigger a fault at the then current levels of 45Mbps but now they just move the goal posts and dropped my IP profile instead and as such my threshold for triggering a fault has also trailled down too.
It's pathetic and very unacceptable to be sold a service only to end up having a percentage of what was agreed to and paying a premium for this service.. My latency is also very sloppy and does not seem as "snappy" as it once was.
I used to be all for Plusnet but now I do not recommend them to others.
As for the static-IP comment above well thats just not good enough if the ISP reduce the speeds as much as PN have done.