Seven months in, and nothing has been resolved...

Question

Posting on the forums had to be my last choice in the matter, but after 200 phone calls and over four engineers I think enough is enough. I have been a BT customer for more then two years, but since this year I have received nothing but a headache. My usual speed averages at about 1Mbps but in reality I'm receiving less then 29Kbps. This problem has been going on now for almost eight months now. I've been promised modems that have never been ordered, call backs that never happen and upgrades which don't do anything. I understand that I need to supply the forum poat with my modem  settings, here they are bellow.
Connected
Connection time:
0 days, 00:31:44
Downstream:
1.531 Mbps
Upstream:
448 Kbps
ADSL Settings
VPI/VCI:
0/38
Type:
PPPoA
Modulation:
G.992.1 Annex A
Latency type:
Interleaved
Noise margin (Down/Up):
11.8 dB / 12.0 dB
Line attenuation (Down/Up):
62.3 dB / 31.5 dB
Output power (Down/Up):
16.8 dBm / 12.6 dBm
FEC Events (Down/Up):
160 / 24
CRC Events (Down/Up):
1 / 1
Loss of Framing (Local/Remote):
0 / 0
Loss of Signal (Local/Remote):
0 / 0
Loss of Power (Local/Remote):
0 / 0
HEC Events (Down/Up):
5 / 1
Error Seconds (Local/Remote):
1 / 1
In responce to the usual questions...
I have a wired connection to my modem 
I'm using the master socket
There is an openreach face plate installed on the master socket
and I'm using a coustom built computer
Although the speed may look fine, come around 10'o'clock that speed will drop out and I will be faced with a much lower connection. The only way to resolve my issue was to reset the modem every morning when I woke up, which isn't helping myself I know, but based on the BT support I've been given I have no other choice. Of an evening our speed averages slower then 97% of the country. I can understand that I would achieve a minimum of 1Mb, thats fine but I'm not recieving it. A few days Ago I recieved an email from BT claiming that the exchange would be undergoing some repairs to offer a more reliable service. the email I recieved is bellow.
Hello,
On 16-Aug-12, we’ll be upgrading your local phone exchange. That means you’ll get a stronger, more reliable broadband connection. (It might make it a bit faster, too.)
What will happen on the day?
At some point before 6pm, we’ll switch off your broadband and phone for a few minutes. They should restart again automatically when we’ve finished the upgrade. But if they don’t, just turn your BT Home Hub off and on again. If you’re not using your BT Home Hub or BT supplied hub-router at the moment, we recommend you reconnect it to get the best out of your broadband. It’ll also help us fix problems if any crop up.
When will the upgrade be finished?
Although the technical stuff will all happen on 16-Aug-12, your line will need some time to settle down. That’ll take up to ten days. Your broadband might slow down or even stop now and again. But don’t worry, that’s normal.
The best thing to do is leave your BT Home Hub on and use your broadband as much as you like. Then your line should settle fairly quickly.
Will it affect my BT Vision?
Only if you’re actually watching an On Demand programme during the upgrade. Then you’ll see an error message.
After the upgrade, everything should restart automatically. But if you get an error message, restart your BT Vision box manually. To do that, just hold down the power button for about six seconds.
Any recordings you’ve saved or scheduled will still be there.
How can I get BT Infinity?
BT Infinity is our superfast fibre broadband. If we can offer it to you, we’ll let you know in a separate email or letter. Or you can check for yourself at bt.com/infinity
Anything else?
If there’s anything else connected to your phone or broadband line, you might need to restart them after the upgrade.
Where can I get more information?
At bt.com/networkupgrade. You can get in touch with us from there too.
Thanks for choosing BT,
Warren Buckley
Managing Director, Customer Service
I can sadly say that there was no long term effect from this apparent upgrade. After I came home from holiday I did notice that the line was recieving 2.2Mbps and I was extreamly happy, until night time came around. The modem shut itself off and did the useual stuff that it normally does and has done for the past seven months. 
On the whole I'm very distressed with this matter and have quite frankly given up all hope for any fix. If there is any more information that I need to provide please don't hesatate to ask me. Thank you for your help in advance. I just want my normal connection.

Answer 1

To my surprise, I was able to use the speedchecker. These are the results of when the connection is perfect, I will post this evening the drop out results.
1. Best Effort Test:  -provides background information.
Download  Speed
1.19 Mbps
0 Mbps
2 Mbps
Max Achievable Speed
 Download speedachieved during the test was - 1.19 Mbps
 For your connection, the acceptable range of speeds is 0.8 Mbps-2 Mbps.
 IP Profile for your line is - 1.38 Mbps
2. Upstream Test:  -provides background information.
Upload Speed
0.01 Mbps
0 Mbps
0.45 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 0.01Mbps
 Additional Information:
 Upstream Rate IP profile on your line is - 0.45 Mbps
We were unable to identify any performance problem with your service at this time.
It is possible that any problem you are currently, or had previously experienced may have been caused by traffic congestion on the Internet or by the server you were accessing responding slowly.
If you continue to encounter a problem with a specific server, please contact the administrator of that server in the first instance.