Configured Download Throughput Speed is 6500K

[#1]

Your IP Profile for the current sync speed should rise to 13000kbps.

[#2]

Interleaving was turned off yesterday and I'm now seeing an improved connection speed, very pleased with the result.
However I'm seeing an increased number of 'Uncorrected Blocks' on my router. This never used to leave zero and I've had 750 in the last 90mins, is this something I should be worried about?
[tt]--------------------------- ATU-R Info (annex A) ----------------------------
Running Mode            :  ADSL2+      State                : SHOWTIME
DS Actual Rate          : 18810700 bps  US Actual Rate      :  1071800 bps
DS maximum Rate        : 18810700 bps  US maximum Rate      :  1071800 bps
DS Path Mode            :  Interleave    US Path Mode        :  Interleave
NE Current Attenuation  :    18.5  dB    Cur SNR Margin      :    3.0  dB
DS actual PSDM(C)      : 00000000      US actual PSDM(R)    : 00000000
-------------------------------- ATU-C Info ---------------------------------
Far Current Attenuation :    11.5  dB    Far SNR Margin      :    14.0  dB
CO ITU Version[0]      : 00000000      CO ITU Version[1]    : 00000000
DSLAM CHIPSET VENDOR    : < Unknown >
-----------------------------------------------------------------------------
INTL, DSTREAM bytes/depth=  0, symbols/codewords  =  0, latency= 0*0.25ms.
    , USTREAM bytes/depth=  0, symbols/codewords  =  0, latency= 0*0.25ms.
CODE, DSTREAM fast parity bytes=  0, fast codeword=  0.
      DSTREAM intl parity bytes=  0, intl codeword=  0.
CODE, USTREAM fast parity bytes=  0, fast codeword=  0.
      USTREAM intl parity bytes=  0, intl codeword=  0.
Setting>>
    FDQ : Enable, TCM : Enable, EC : Disable, Framing Mode : 3.
Running>>
    FDQ :    Off, TCM :    Off, EC :    Off.
    DS : Framing Mode 3, US : Framing Mode 3.[/tt]

[#3]

I just re-ran the BT speed tester and got the following results...
Test1 comprises of Best Effort Test:
-provides background information.
    Your DSL connection rate: 18810 kbps(DOWN-STREAM),  1071 kbps(UP-STREAM)
    IP profile for your line is - 13000 kbps
    Actual IP throughput achieved during the test was - 1641 kbps

[#4]

Hi Englebert,
The number of uncorrected block has gone up, because there's no interleaving to correct them.
What results do you get from say, the thinkbroadband speed tester?
Our seems to be giving some fairly spurious results recently.

[#5]

Btw - If you PM me your username, I'll check out your account to make sure that all the profiling is as it should be.

[#6]

Results from thinkbroadband
[tt]Speed Test Results
Date 03/03/09 11:09:07
Speed Down 1780.85 Kbps ( 1.7 Mbps )
Speed Up 817.62 Kbps ( 0.8 Mbps )
Port 8095
Server speedtest1.thinkbroadband.com[/tt]
According to their tests my connection is slightly slower than DSL 2 Meg.

[#7]

Username please

[#8]

James, thanks for the tweaks.
thinkbroadband is now showing...
[tt]Speed Test Results
Date 03/03/09 12:29:43
Speed Down 10419.94 Kbps ( 10.2 Mbps )
Speed Up 817.53 Kbps ( 0.8 Mbps )
Port 8095
Server speedtest1.thinkbroadband.com[/tt]

[#9]

My connection broke this morning and I've reconnected at a slower downstream speed (16767700).
Are fluctuations like this normal? I never experienced such problems before moving over to the 21CN.

[#10]

When I first started on the trial my line disconnected nearly every day for the first two weeks and the downstream sync speeds fluctuated quite a lot.  I've been on the trial now for three months and my line rarely disconnects now but my downstream sync speeds vary sufficiently for my IP Profile to be constantly changing.  Two days ago my IP Profile was 12,000 kbps, it is currently 11,000 kbps and two weeks ago it was 10,000 kbps.  This seems to be the norm for me at least.  ADSL2+ is more volatile than ADSL1, when I was on ADSL1 I never had any disconnects and my downstream sync speed was always 8096 kbps.

[#11]

Okay, I've been up and running for a few months now and on the whole I've had a happy experience.
However in the past few weeks I've noticed a marked drop in my connection speed. 
I was experiencing speeds of 18Mbps (see Reply #16 on 03/03/2009, 09:34) but this has nearly halved and I'm now running at 10Mbps. Nothing has changed my end so something has happened at the exchange or beyond.
Has anyone else seen this sort of behaviour and is there anything I can do to return the link to what it was?
[tt]--------------------------- ATU-R Info (annex A) ----------------------------
Running Mode            :   ADSL2+       State                : SHOWTIME
DS Actual Rate          : 10529600 bps   US Actual Rate       :  1087900 bps
DS maximum Rate         : 10529600 bps   US maximum Rate      :  1087900 bps
DS Path Mode            :  Interleave    US Path Mode         :  Interleave
NE Current Attenuation  :    19.0  dB    Cur SNR Margin       :    14.0  dB
DS actual PSDM(C)       : 00000000       US actual PSDM(R)    : 00000000
-------------------------------- ATU-C Info ---------------------------------
Far Current Attenuation :    12.0  dB    Far SNR Margin       :    14.0  dB
CO ITU Version[0]       : 00000000       CO ITU Version[1]    : 00000000
DSLAM CHIPSET VENDOR    : < Unknown >
-----------------------------------------------------------------------------
INTL, DSTREAM bytes/depth=   0, symbols/codewords  =   0, latency= 0*0.25ms.
     , USTREAM bytes/depth=   0, symbols/codewords  =   0, latency= 0*0.25ms.
CODE, DSTREAM fast parity bytes=   0, fast codeword=   0.
       DSTREAM intl parity bytes=   0, intl codeword=   0.
CODE, USTREAM fast parity bytes=   0, fast codeword=   0.
       USTREAM intl parity bytes=   0, intl codeword=   0.
Setting>>
     FDQ : Enable, TCM : Enable, EC : Disable, Framing Mode : 3.
Running>>
     FDQ :    Off, TCM :    Off, EC :    Off.
     DS : Framing Mode 3, US : Framing Mode 3.[/tt]

[#12]

Quote from: pnf

Two days ago my IP Profile was 12,000 kbps, it is currently 11,000 kbps and two weeks ago it was 10,000 kbps.  This seems to be the norm for me at least.  ADSL2+ is more volatile than ADSL1, when I was on ADSL1 I never had any disconnects and my downstream sync speed was always 8096 kbps.

Do you notice these sync changes or does the line become sluggish at times? ADSL2+ has a feature called Seamless Rate Adaption, SRA would stop those problems, but BT have not enabled it, preferring to homebrew their DLM software/logic!
SW.