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[TableLeg]

To cut a very long story short I've had Fibre broadband now for 2 years. During this time I have been on an 'upto' 38 meg profile and my IP profile has always been shown as 38meg.

I was told by my ISP I was getting a speed increase to 52meg from August 1st.

No change by week 2 of August called and have been constantly told different things every since. I have had a BT engineer out last week to check the phone lines and today a BTW Broadband engineer to check the connection.

He reported that the line was tested as being capable of 54meg and that he would expect a sync of 52meg. He phoned BTW and they performed a DLM reset which made no difference. He checked again the stats and still said it was capable of 54meg so called again explaining there had been change to the IP profile and again BTW did another DLM reset, no change.
He then performed (and showed me on his laptop as he did it) another DLM reset and again it made no change. The profile shows as 80/20 with 52meg capable line but only 38meg at the master socket. He could not explain it. We tried a different router/modem and it only increased it by a couple of meg.

He seemed completely stumped. He went to the exchange and checked the incoming connection and informed me it was set at 80/20 and again could not offer and explanation as to why it was only (and still) 38meg.

Can anybody possibly give any advice? I know that both the Plusnet Technical advisors and BTW engineers are the professionals but as yet I am not getting any answers.

I feel as though I am being fobbed off by Plusnet as they keep telling me different things.

Just to note, I have a second phoneline to the property also on Fibre and that gets 56meg but is with a different ISP.

[TableLeg]

I suspect this goes some way to explaining why the change, and it appears that I still get a 40/10 connection despite the reset.........

http://www.increasebroadbandspeed.co.uk/2016/speed-increase-bt-infinity

[tbailey2]

Have you checked that your Plusnet profile  isn't stuck at ~38 (it is supposed to mirror the BT one but sometimes does not) since you know the BT one is ~55?

https://portal.plus.net/my.html?action=data_transfer_speed

If it is, then request they give it a kick! Happened to me some weeks back.

[TableLeg]

Have you checked that your Plusnet profile  isn't stuck at ~38 (it is supposed to mirror the BT one but sometimes does not) since you know the BT one is ~55?

https://portal.plus.net/my.html?action=data_transfer_speed

If it is, then request they give it a kick! Happened to me some weeks back.

Many thanks for the reply.

I checked what you suggested and below is what it says.

Estimated line speed:
    There's no speed estimate currently held on your account.
Current line speed:
    55 Mb

[Dray]

Can you post sync speeds, attenuation, snrm, etc from your router?

[TableLeg]

Can you post sync speeds, attenuation, snrm, etc from your router?

I hope this is what you need:

Stats recorded 27 Sep 2016 18:17:38

DSL mode:                  VDSL2 Profile 17a
         
            Downstream   Upstream
Line attenuation (dB):     20.9      0.0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   38623      13424
SNR margin (dB):           6.1      6.0
Power (dBm):               12.0      7.5
Interleave depth:          755      1
INP:                       3.00      0
G.INP:                     Not enabled      Not enabled
Vectoring status:          5 (VECT_UNCONFIGURED)      

RSCorr/RS (%):             41.9807      0.0014
RSUnCorr/RS (%):           0.0000      0.0000
ES/hour:                   2.61      3.48

[S.Stephenson]

 The line is interleaved which may be due to the DLM reset and should theoretically apply G.INP which should get the sync at ~55mbit.

In regards to your other line being faster that's normal unfortunately I have one line that runs at 73mbit and another that runs at 63mbit.

[TableLeg]

The line is interleaved which may be due to the DLM reset and should theoretically apply G.INP which should get the sync at ~55mbit.

Thanks for the reply. What part of the information above reveals the interleaving? The application of G.INP what is it and why/when should it happen?

[j0hn]

Are we sure it's a Huawei cabinet? Even if it is, I don't see g.inp improving the sync that much. If it's an ECI cabinet, that's the best your line can achieve.

I was told by my ISP I was getting a speed increase to 52meg from August 1st.

That's just the max the package can achieve. With the snrm at 6.1dB your line is syncing at its best.

Just to note, I have a second phoneline to the property also on Fibre and that gets 56meg but is with a different ISP.

It's not at all uncommon that 1 line will perform better than the other

[S.Stephenson]

Thanks for the reply. What part of the information above reveals the interleaving? The application of G.INP what is it and why/when should it happen?

The INP of 3 indicates interleaving as well as the interleave depth being 755.

G.INP as far as I am aware usually takes 2 weeks to apply after a DLM reset however it currently only works on a Huawei cabinet, if your cabinet is an ECI one then the interleaving should still disappear after a few weeks but the benefit will not be as great as on a Huawei one.

Guide to identifying cabinet type
http://www.kitz.co.uk/adsl/fttc-cabinets.htm

A non-G.INP non-interleaved line stats.
Stats recorded 27 Sep 2016 18:50:48

DSLAM/MSAN type:           IFTN:0xb206 / v0xb206
Modem/router firmware:     AnnexA version - A2pv6C038m.d24j
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                    2 hours 56 min 47 sec
Resyncs:                   0 (since 27 Sep 2016 15:57:45)
         
            Downstream   Upstream
Line attenuation (dB):     14.3      0.0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   73584      20000
SNR margin (dB):           6.3      9.5
Power (dBm):               4.3      4.4
Interleave depth:          1      1
INP:                       0      0
G.INP:                     Not enabled      Not enabled
Vectoring status:          5 (VECT_UNCONFIGURED)      

RSCorr/RS (%):             N/A      0.0017
RSUnCorr/RS (%):           N/A      0.0000
ES/hour:                   29.1      2.29

[j0hn]

if your cabinet is an ECI one then the interleaving should still disappear after a few weeks but the benefit will not be as great as on a Huawei one.

A DLM reset on an ECI cabinet reverts the line to an open profile does it not? If it is an ECI cabinet I don't see interleaving dropping off.

[S.Stephenson]

Not too sure on the ECI front tbh, but the E/S on the DS seems low enough for DLM to relent unless there are a large number of disconnections or error spikes.

[Dray]

That sync speed looks like 20 upload rather than 10 - "Connection speed (kbps):   38623      13424"

Maybe you're on 80/20 or 40/20 or something?

What does your IP Profile say for download and upload?

[j0hn]

Not too sure on the ECI front tbh, but the E/S on the DS seems low enough for DLM to relent unless there are a large number of disconnections or error spikes.

It should, but DLM can be stubborn at removing interleaving