Fibre connected - slow speed test

[#1]

Hi
Today I was moved from ADSL to Fibre.
My Hub One is showing a sync speed of 39 Mb down and 1.9 up.
When I do a speed test I only get around 14 Mb down, which is what I had with my ADSL connection. (The test is over 150 Mb wi-fi).
When I check the line speed page in the member centre it shows my current line speed as 14.6 Mb which is unchanged from ADSL.
I've tried disconnecting and reconnecting to plusnet in the router and it has made to difference.
Could somebody take a look and see if there is something in the system that needs to be refreshed.
Thanks.
(my plusnet username is 'herojan')

[#2]

Can you try a disconnect and reconnect now?

[#3]

reconnected and rerun the speed test, 37 Mb.
All fixed, thank you very much

[#4]

oddly, while my speedtests are still showing 36-37 Mb, my 'current line speed' according to the member centre is back down to 15.5 Mb?

[#5]

this seems to resolved itself, with the member centre line speed back up to 38.5 MB
I guess I shall have to keep an eye on it.