Poor Speeds Return Again. Can someone please take a look?

[#1]

Well my Poor speeds have returned again. On a FTTC connection, my estimate is for 49.8Mb (+/- 1MB), I usually sit at around 25 Mb, but this morning my speeds are at a pitiful 1.57Mb on the BT speed tester. Have run the additional diagnostics but I keep getting this:-
FAQ
Results Image not loaded

1. Best Effort Test:
Download Speed : 1.57 Mbps
2. Upstream Test:
Upload Speed : 5.08 Mbps

Your speed test has completed and the results are shown above, however during the test an error occurred while trying to retrieve additional details regarding your service. As a result we are unable to determine if the speed you received during the test is acceptable for your service. Please re-run the test if you require this additional information.
I have raised a fault, ticket number 80627577. Please can someone take a look becasue I am so tired of paying £27 a month for a sub standard service.  Thanks in anticipation.

[#2]

Does this link work http://www.speedtest.btwholesale.com/PerformanceTesterWS/diagnostics.do for the IP profile
Given your username are you from Wales - if so which exchange are you on

[#3]

Hi Jim, Originally from Wales, but now live in Northern Ireland, am on the Coagh Exchange. Get the same problem on the link you provided, however, my Upload speed has now also died:-
Results Image not loaded

1. Best Effort Test:
Download Speed : 1.6 Mbps
2. Upstream Test:
Upload Speed : 0.01 Mbps

Your speed test has completed and the results are shown above, however during the test an error occurred while trying to retrieve additional details regarding your service. As a result we are unable to determine if the speed you received during the test is acceptable for your service. Please re-run the test if you require this additional information.

[#4]

upload speed is borked on that particular test
this will need staff to comment as without a successful result for the IP profile we don't have enough information to help

[#5]

Popped to the shop and saw a Bt Van driving away from the Cabinet. Came home, disconnected my routers internet connection, then powered down the router and modem. Re-run a test and now getting some sembelance of normallity.  However the further diagnostics fail:-

FAQ
Results Image not loaded

1. Best Effort Test: -provides background information.
Download Speed
21.82 Mbps

0 Mbps 27.32 Mbps
Max Achievable Speed
Download speedachieved during the test was - 21.82 Mbps
For your connection, the acceptable range of speedsis 40 Mbps-27.32 Mbps .
Additional Information:
IP Profile for your line is - 27.32 Mbps
2. Upstream Test: -provides background information.
Upload Speed
5.21 Mbps

0 Mbps 20 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 5.21Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

This test was not conclusive and further testing is required.This might be useful for your Broadband Service Provider to investigate the fault.
If you wish to carry out further tests,please click on 'Continue' button.If not, please close the window using 'Exit' button and contact your ISP for further assistance with these results.

[#6]

Doesn't look too bad but what does this say https://portal.plus.net/my.html?action=data_transfer_speed
By the way - those results are from the Further Diagnostics

[#7]

Jim, thanks for your help. I know those are results from the further diagnostics, what I meant was they were in red, stating they were failing, as not what I should be getting. The results from your link:-
Estimated line speed:
    There's no speed estimate currently held on your account.
Current line speed:
    25.6 Mb
Thanks for your help.

[#8]

That should increase to 27.3Mbps and then you will get a small increase in speed

[#9]

Cheers Jim for all your help. Can someone from Plusnet speed this process up please?

[#10]

Just bumped the profile on our side up to 27300 to match, hope it improves the speeds for you.

[#11]

Thanks Matt, sitting at around 24 Mb now.