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Beginner
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Message 1 of 8

New line & Banded when no errors on the line

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I have a VDSL line (55/10) which was activated on 3/9/19 but was banded as soon as G.INP was activated on day 3 and is still banded now when the line is error free.

Bit of a background. I was originally connected to an ECI cab back in 2013 and the line has always been stable connecting between 43-45Mbs. Never had a issue. Due to local demand an extra Huawei cab was added to my local cabinet last year. At the end of my contract I moved to ADSL for a month and then signed backup with BT VDSL. This moved me over to the Huawei cab.

On activation day (3/9/19) I synced at 38021 with a SRN of 6.1 with interleaving on (which is the norm for a new Huawei cab). The line was re-synced by the cab in the early hours of day 3. G.INP was activated as expected but the line was also banded at 39999 kbps. (see stats below) It has stayed that way since. No re-syncs. I am at a SNR of 7.8 to 7.9 so there is headroom there. My ES/hour are virtually NIL and my line has only re-synced once and that was day 3.

Due the 10 day period I know the line should retrain but no activity has taken place and seems stuck banded. I know banding happens if there has been error on the line but this has not been the case and it seems stuck. I understand the only way to do this is with an engineer but are there any BT support staff here who could assist in prodding the line a bit to remove the banding? Thanks

Stats recorded 12 Sep 2019 14:33:00

DSLAM type / SW version:           BDCM:0xa48c (164.140) / v0xa48c

Modem/router firmware:            AnnexA version - A2pv6C038m.d24j

DSL mode:                          VDSL2 Profile 17a

Status:                 Showtime

Uptime:                               6 days 12 hours 38 min 15 sec

Resyncs:                              0 (since 06 Sep 2019 14:43:56)

                                               

                                                                Downstream      Upstream

Line attenuation (dB):    22.2                        0.0

Signal attenuation (dB):                Not monitored                 

Connection speed (kbps):            39999                    9897

SNR margin (dB):              7.7                          6.1

Power (dBm):                    12.8                        6.6

Interleave depth:            16                           1

INP:                       48.00                     0

G.INP:                  Enabled                                Not enabled

Vectoring status:              5 (VECT_UNCONFIGURED)         

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Distinguished Sage
Distinguished Sage
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Message 2 of 8

Re: New line & Banded when no errors on the line

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Have you checked MYBT to make sure you package is superfast 1 and not Essential as being banded after new connection and only 9 days with stats showing 6 days connection time would be unusual and more like wrong package



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Beginner
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Message 3 of 8

Re: New line & Banded when no errors on the line

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I had thought about that. I'm on BT Super fast Fibre Unlimited.  Just checked to make sure!

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Beginner
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Message 4 of 8

Re: New line & Banded when no errors on the line

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I followed this up with a call to BT. They have set the profile to my line to 40/10 and refuse to move it to 55/10 which I know the line can support as it was that way for the last 6 years. My current modem stats prove this as of today. Its frustrating because superfast 1 profile is normally 55/10 anyway and it is what I was paying for.

Its a shame because BT support staff really do let this organisation down. As I'm in my 14 day cooling off period I have just left and set up with another ISP who totally understood this issue. I don't want to keep fighting with a company which just does not support its customers and refuses to listen.

 

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Beginner
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Message 5 of 8

Re: New line & Banded when no errors on the line

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I thought I would give an update on this as it has been sometime since I switched within my 14 day cooling off period because BT insisted by line would not go above 39999kbps yet for years it was running at 45000kbps. BT put me on 40/10 and refused to move it higher to 55/10 or 80/20. (I was already paying for 55/10 !!!!)

Here I am now with a different ISP who immediately knew the issue and I am running roughly around 51300kbps download on an 80/20 profile. Even now BT wont let me order 80/20. I just want people to be aware BT might be holding back your download speed without you knowing there is lots of room for improvement.

Stats recorded 11 May 2020 21:13:24

DSLAM type / SW version: BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware: AnnexA version - A2pv6C038m.d24j
DSL mode: VDSL2 Profile 17a
Status: Showtime
Uptime: 31 days 9 hours 2 min 13 sec
Resyncs: 0 (since 11 May 2020 21:07:21)

Downstream Upstream
Line attenuation (dB): 22.2 0.0
Signal attenuation (dB): Not monitored
Connection speed (kbps): 51352 8845
SNR margin (dB): 3.3 6.1
Power (dBm): 13.0 6.6
Interleave depth: 8 1
INP: 49.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

RSCorr/RS (%): 0.5519 0.0016
RSUnCorr/RS (%): 0.0000 0.0000
ES/hour: 0 0

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Sage
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Message 6 of 8

Re: New line & Banded when no errors on the line

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What's the oint of being on an 80/20 package when you can't even get 55/10? Good to see G.INP active on the line (3.3 d/l noise ratio) unlike previously (enabled does not = active).

The above said why BT wouldn't help you previously is a mystery.

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Contributor
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Message 7 of 8

Re: New line & Banded when no errors on the line

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So when with BT, you were given a max of 40/10 on a line that could potentially do 55/10 and yet that wasn't good enough so cancelled and went elsewhere.

So now your paying for a 80/20 package with another isp and yet can only get 51/9

Cant understand why you would pay for something your never going to receive. That's why you cannot buy an 80/20 package  with BT as its unattainable.

 

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Beginner
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Message 8 of 8

Re: New line & Banded when no errors on the line

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I think you have missed the point or not understood.

I ordered infinity 1 which was supposed to be 55/10 profile which yes would have been perfect as I was previously getting 45 on a BT line with another ISP for years.

BT would only provide a 40/10 profile even though infinity 1 was supposed to be 55/10. BT refused to switch profile to 55/10 insisting 45 was impossible and their systems would not allow it.

As you should know most other ISP's only offer either 40/10 or 80/20 not 55/10. So by switching ISP rather than playing the BT game of misinformation I changed ISP in the cooling off period. I had a choice of 40/10 or 80/20 with the new ISP. Choosing 80/20 gave me  a speed of 51 down which only a few days before BT said was not possible. (and its still on a BT line).

So yes I have 51/9 which is a 20% increase in download speed by changing ISP so that is 'THE POINT'. 

'THE POINT' of this is to make others aware that if your line is borderline 55/10 BT may restrict you to 40/10 when your line can do so much more. Who would not take a 20% increase in speed??

 

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