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Standard User Sylcol
(member) Tue 21-Nov-17 12:05:42
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BT Speed Boost Question


[link to this post]
 
I do not have a problem but am curious about how the system works.

Some weeks ago I got the BT Speed boost so where I was getting say 52Mbps now get say 62Mbps. All good I hear you say and I am well aware that many would be delighted with that!

We were fortunate to have fibre through the partnership scheme and so despite being EO two new cabinets were installed in the pavement outside the exchange.

My house is served by about 200 metres of underground cable and then about 50 metres of overhead which is continuous from the pole with no joints to a Mk3 face plate.

I guess that it is the original underground cable from may be 1950's so copper. The overhead was replaced about 4 years ago so is modern.

Available checker gives 80 high 79 low or impacted 80 high 75.2 low. Upload 20.

However, wholesale gives the profile as 65.48 so that is why my speed is 62 and 18.
Waffle over, I am just curious what may be giving this profile. If I don't get full speed being this close how would others get better?
Administrator MrSaffron
(staff) Tue 21-Nov-17 12:48:35
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Re: BT Speed Boost Question


[re: Sylcol] [link to this post]
 
So why you not getting much higher?

Without any actual statistics from your router, e.g. attenuation, connection speeds and noise margin figures hard to say more. It may be you have a non Broadcom chipset modem on a Huawei cabinet are missing out on some improvements that offers, another is that there may be more RF noise affecting VDSL2 in your area, another is the state of any internal wiring in your home.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User MHC
(sensei) Tue 21-Nov-17 12:58:25
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Re: BT Speed Boost Question


[re: Sylcol] [link to this post]
 
Is it 200m of underground? Are you 100% sure of teh routing?

As Mr S says - full stats are needed to comment in detail.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit


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Standard User Sylcol
(member) Tue 21-Nov-17 19:51:08
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Re: BT Speed Boost Question


[re: MrSaffron] [link to this post]
 
Thank you for your replies,details are.

Huawei 96/128 Cabinet

Confident that distance and cable route are reasonably accurate, I can see the cabinets and exchange from my garden, more or less straight road to them.

House rewired eight years ago. No xmas lights yet! Detached property.

Tests not using Wi-Fi, hard wired.


1.
Product Name:
HomeHub5
2.
Serial number:

3.
Firmware version:
v0.07.06.01239-BT (Type B) Last updated 11/3/2017
4.
Board version:
01
5.
VDSL uptime:
10 days, 09:10:11
6.
Data Rate:
19999 / 67977
7.
Maximum Data Rate:
23409 / 69615
8.
Noise Margin:
7.3 / 6.3
9.
Line Attenuation:
7.7 / 9.7
10.
Signal Attenuation:
0.0 / 0.0
11.
Data sent/received:
2.7 GB / 33.5 GB
12.
Broadband username:
bthomehub@btbroadband.com
13.
BT Wi-fi:
Yes
14.
2.4GHz wireless network/SSID:
BTHub5-FZJ8-2.5GHz
15.
2.4GHz wireless connections:
Enabled (802.11 b/g/n (up to 144 Mb/s))
16.
2.4GHz wireless security:
WPA2 Only (Recommended)
17.
2.4GHz wireless channel:
Automatic (Smart Wireless)
18.
5GHz wireless network/SSID:
BTHub5-FZJ8-5GHz
19.
5GHz wireless connections:
Enabled (802.11 a/n/ac (up to 1300 Mb/s))
20.
5GHz wireless security:
WPA2 Only (Recommended)
21.
5GHz wireless channel:
Automatic (Smart Wireless)
22.
Firewall:
Default
23.
MAC Address:

24.
Software variant:
-
25.
Boot loader:
0.5.0-BT (Tue Jun 17 18:52:56 2014)


BT Home Hub 5 (Type B) | Software version v0.07.06.01239-BT | Last updated 11/3/2017
Standard User BatBoy
(sensei) Tue 21-Nov-17 19:58:07
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Re: BT Speed Boost Question


[re: Sylcol] [link to this post]
 
Maybe awaiting G.INP to be applied. Whatís your extension wiring setup?
Standard User MHC
(sensei) Tue 21-Nov-17 20:08:23
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Re: BT Speed Boost Question


[re: BatBoy] [link to this post]
 
That looks like a very noisy line ... even without G.INP it should be in the high 70s and potentially over 80 Mbps if the noise was "average". The attenuation of 9..7 suggests around 250 to 300m which ties in with the OPs estimate.. I have seen 16dB/450m lines running at 80Mbops without G.INP.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User BatBoy
(sensei) Tue 21-Nov-17 20:10:59
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Re: BT Speed Boost Question


[re: MHC] [link to this post]
 
Agreed. I think g.inp is actually on
Standard User Zarjaz
(eat-sleep-adslguide) Tue 21-Nov-17 20:15:38
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Re: BT Speed Boost Question


[re: Sylcol] [link to this post]
 
Something's not right there ...... look at my stats , almost ditto for the attenuation, same router (ECI cab for me)

Product name:
BT Hub 6A
Serial number:
+084316+NQ64206356
Firmware version:
SG4B1000B316
Firmware updated:
30-Jul-2017
Board version:
1.0
Gui version:
1.64.0
DSL uptime:
27 Days, 19 Hours 38 Minutes 30 Seconds
Data rate:
20.00 Mbps / 80.00 Mbps
Maximum data rate:
35591 / 104727
Noise margin:
15.5 dB / 11.9 dB
Line attenuation:
9.3 dB
Signal attenuation:
VPI / VCI:
0/38
Modulation:
G_993_2_ANNEX_B
Latency type:
Fast Path
Data sent / received:
29928 MB Uploaded / 292822 MB Downloaded

As MHC asks, what's going on with your extension wiring please ?

* Sorry, NOT the same hub.

Edited by Zarjaz (Tue 21-Nov-17 20:17:14)

Standard User MHC
(sensei) Tue 21-Nov-17 20:21:17
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Re: BT Speed Boost Question


[re: BatBoy] [link to this post]
 
And looking at upstream with a Max of 23.4 - that is low too. I would be expecting a MaxAttainable of around 30 or more. Points to noise ... I am guessing that as they moved from EO to two cabinets there would be a large number of users and this a high noise floor.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User Sylcol
(member) Tue 21-Nov-17 20:42:17
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Re: BT Speed Boost Question


[re: MHC] [link to this post]
 
May have misled about two cabinets, as we were EO a normal phone line cabinet was installed in pavement. Donít know the correct term for that cabinet. Then close by a fibre cabinet.

Do you mean what other phone connections are in the house?

No phone connected at the Mk3 face plate, three other phones connected in other rooms. Long before the Mk3 face plate I had disconnected the ring wire. I thought with that face plate with itís own fibre outlet there would be no problems caused with other phone points.
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