BT Infinity & FTTx Discussion

Caporegime
Joined
17 Jul 2010
Posts
25,658
MissChief - is the £8.99 deal for existing sky customers ? Currently have TV, Broadband and landline and am not getting any deals as an existing customer ? Is there anything you can do :p ?

Otherwise will have to jump ship to BT for landline/broadband
Trust message me your details and I will see what I can do.
 

HAz

HAz

Soldato
Joined
1 May 2003
Posts
10,856
Location
Torquay Devon
mines gone from Build stage to connect! i know its like asking how longs a piece of string but how long did it take some of you to be live from connect stage?

cheers
 
Soldato
Joined
27 Jul 2007
Posts
6,085
I was on BT Infinity 1 for a year before switching to PlusNet 80/20 on 07 November. My downstream noise margin on BT was about ~4.5dB (I believe I'm on an ECI cabinet). My downstream noise margin on PlusNet has been hovering around 6.2dB so I've effectively lost 10mbit on the downstream.

Will PlusNet eventually reduce my noise margin or will I need to purchase a new VDSL modem like the Draytek Vigor 130 and force the noise margin to be lower? I'm using a BT HomeHub 5 and not the PlusNet Hub One router although it shouldn't make any difference.

5. VDSL uptime: 2 days, 04:16:07
6. Data Rate: 9726 / 49521
7. Maximum Data Rate: 9749 / 49672
8. Noise Margin: 6.6 / 6.2
9. Line Attenuation: 33.0 / 23.2
10. Signal Attenuation: 0.0 / 0.0
 
Soldato
Joined
13 Jun 2009
Posts
6,847
I was on BT Infinity 1 for a year before switching to PlusNet 80/20 on 07 November. My downstream noise margin on BT was about ~4.5dB (I believe I'm on an ECI cabinet). My downstream noise margin on PlusNet has been hovering around 6.2dB so I've effectively lost 10mbit on the downstream.

Will PlusNet eventually reduce my noise margin or will I need to purchase a new VDSL modem like the Draytek Vigor 130 and force the noise margin to be lower? I'm using a BT HomeHub 5 and not the PlusNet Hub One router although it shouldn't make any difference.
I have been with Plusnet at my current property for 18 months and it's always been around 6 dB. I wouldn't expect it to change.
 

Jez

Jez

Caporegime
Joined
18 Oct 2002
Posts
33,073
I didnt think that the ISP controlled the target noise margin, but rather the local BT Openreach DSLAM in your cabinet? Mine fell steadily to 3db as BTO announced that they would be rolling this out, i dont think it had anything to do with the resellers?
 
Soldato
Joined
27 Jul 2007
Posts
6,085
I didnt think that the ISP controlled the target noise margin, but rather the local BT Openreach DSLAM in your cabinet? Mine fell steadily to 3db as BTO announced that they would be rolling this out, i dont think it had anything to do with the resellers?

You might be right. It looks like PlusNet (or any other provider) can put in a request to alter the noise margin/SNR according to this forum post.
 

Jez

Jez

Caporegime
Joined
18 Oct 2002
Posts
33,073
Yep they can request things via BTO, in terms of resets and profiles, but they dont actually control it. I would be fairly sure that if your cabinet supports and has had 3db targets applied to it, then all FTTC connections on that cabinet would receive the same changes.

The product which you connect with is a generic resold package from BTO, regardless of ISP...
 
Associate
Joined
8 Nov 2005
Posts
1,545
Location
N.I
Have also noticed that BT now are advertising their plan as being 18 months. Are there any decent 12 month plans about, as I will probably only need the service for 10-11 months.
 
Soldato
Joined
22 Mar 2009
Posts
5,712
DLM has made change to my line 3 days ago drop from 79999k/20000k for the first time since 2014 but Plusnet fault team refused to ask the engineer to reset DLM because they say my speed estimated is spot on which it totally lied. My line was stable 80/20 for almost 3 and half years.

Code:
Stats recorded 15 Nov 2017 23:20:06

DSLAM/MSAN type:            BDCM:0xa48c / v0xa48c
Modem/router firmware:      AnnexA version - A2pv6F039g1.d24m
DSL mode:                   VDSL2 Profile 17a
Status:                     Showtime
Uptime:                     2 days 2 hours 34 min 33 sec
Resyncs:                    0 (since 15 Nov 2017 13:29:52)
            
                Downstream    Upstream
Line attenuation (dB):      11.4        0.0
Signal attenuation (dB):    Not available on VDSL2       
Connection speed (kbps):    73998        20000
SNR margin (dB):            10.5        14.1
Power (dBm):                12.5        -1.0
Interleave depth:           8        4
INP:                        52.00        55.00
G.INP:                      Enabled        Enabled
Vectoring status:           5 (VECT_UNCONFIGURED)       

Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 33173 Kbps, Downstream rate = 91256 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 73998 Kbps
 
Man of Honour
Joined
13 Oct 2006
Posts
90,819
@bulldog147 Could that be a result of crosstalk?

When I first had my FTTC installed the engineer showed me on his tool (I assume it would be with a 30a profile) max attainable speeds of around 130mbps down and 123mbps up or something like that - now they are around 90 as more people have had FTTC installed in the area :s
 
Soldato
Joined
22 Mar 2009
Posts
5,712
Code:
 Before:



           
                Downstream    Upstream
Line attenuation (dB):      11.4        0.0
Signal attenuation (dB):    Not available on VDSL2      
Connection speed (kbps):    79999        20000
SNR margin (dB):            8.1        15.1
Power (dBm):                12.5        -1.0
Interleave depth:           16        1
INP:                        48.00        00.00
G.INP:                      Enabled        Disabled
Vectoring status:           5 (VECT_UNCONFIGURED)      

Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 32116 Kbps, Downstream rate = 88192 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps

After:

           
                Downstream    Upstream
Line attenuation (dB):      11.4        0.0
Signal attenuation (dB):    Not available on VDSL2      
Connection speed (kbps):    73998        20000
SNR margin (dB):            10.5        14.1
Power (dBm):                12.5        -1.0
Interleave depth:           8        4
INP:                        52.00        55.00
G.INP:                      Enabled        Enabled
Vectoring status:           5 (VECT_UNCONFIGURED)      

Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 33173 Kbps, Downstream rate = 91256 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 73998 Kbps
 

TJM

TJM

Associate
Joined
10 Jun 2007
Posts
2,378
It's a bit odd that you have a line speed of 91Mbps but the connection speed can't hit the maximum. Have you tried resyncing since the speed dropped? If so and it didn't help, just leave it alone and the DLM will slowly sort itself out if it can.
 
Soldato
Joined
22 Mar 2009
Posts
5,712
When I first had my FTTC installed the engineer showed me on his tool (I assume it would be with a 30a profile) max attainable speeds of around 130mbps down and 123mbps up or something like that - now they are around 90 as more people have had FTTC installed in the area :s

In 2014 the engineer say I was the first customer on Fibre at the cabinet. He show me the tool that had the maximum rate of 124Meg down and 42Meg up.
 
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