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Standard User knight01
(learned) Wed 26-Oct-11 12:38:34
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expected adsl2+ speed on 21cn


[link to this post]
 
I'm on ADSL max at the moment and my exchange/line is 21cn enabled. What speed/sync can i expect with my line stats if I decide to regrade to ADSL2+?

ADSL Link...................Downstream........Upstream
Connection Speed.......6358 kbps..........445 kbps
Line Attenuation.........40.0 db...............20.7 db
Noise Margin................8.6 db................18.9 db

TIA

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ZeN 8000 Active

Edited by knight01 (Wed 26-Oct-11 12:47:52)

Standard User XRaySpeX
(knowledge is power) Wed 26-Oct-11 14:07:32
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
You should be getting about 7 Meg now on ADSL Max on a 6 dB NM.

You should get about 8 Meg on ADSL2+, bearing in mind that your attenuation will increase by 3dB.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 17 Meg Untweaked 19 Meg Tweaked WBC
Administrator MrSaffron
(staff) Wed 26-Oct-11 21:29:08
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
http://www.farina1.com/adsl

Would expect a bit more currently, so might suggest a ring wire that needs attending too

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.


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Standard User knight01
(learned) Thu 27-Oct-11 15:01:44
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Re: expected adsl2+ speed on 21cn


[re: MrSaffron] [link to this post]
 
In reply to a post by XRaySpeX:
You should be getting about 7 Meg now on ADSL Max on a 6 dB NM.

You should get about 8 Meg on ADSL2+, bearing in mind that your attenuation will increase by 3dB.


In reply to a post by MrSaffron:
http://www.farina1.com/adsl

Would expect a bit more currently, so might suggest a ring wire that needs attending too


It turned out to be the ring wire which was causing a low sync.

I checked the front plate in front of the master socket and there were no extensions wired directly into that. But I did have a double socket extension plugged in and it did have the bell/ring wire attached to pin 3, I disconnected that and my sync rate went up straight away.

new stats:

ADSL Link...................Downstream.......Upstream
Connection Speed.......7088 kbps..........445 kbps
Line Attenuation...........40.0 db...............20.7 db
Noise Margin................9.2 db................18.6 db

------------------------------
ZeN 8000 Active

Edited by knight01 (Thu 27-Oct-11 15:11:24)

Administrator MrSaffron
(staff) Thu 27-Oct-11 19:01:43
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
Much better, and with ADSL2+ you will get more now.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User knight01
(learned) Tue 01-Nov-11 16:28:15
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
My sync has been 7023kbps for few days (over 93hrs) now and I've done speedtests with various sites and downloading Zen test files, the download speeds are as expected ( =>700Kbps)and match the sync rate.
But according to my line data available in the Zen customer portal, the bras profile is still set as adsl5000.
Shouldn't it be set to adsl6000.

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ZeN 8000 Active

[img]http://speedtest.net/result/1560478072.png[/img]
Standard User iand
(experienced) Tue 01-Nov-11 19:37:59
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
Joy smile

IanD
Administrator MrSaffron
(staff) Tue 01-Nov-11 23:58:04
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
That may simply be Zen is not seeing an updated figure, which is of no consequence

what www.speedtester.bt.com says for the IP Profile is what matters on zen

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
ISP Representative SkyFire
(isp) Wed 02-Nov-11 10:38:00
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Re: expected adsl2+ speed on 21cn


[re: knight01] [link to this post]
 
BT recently made a change on 21CN ADSL and ADSL2+ services where the BRAS tracks the sync rate more-or-less "live", so it's about 88% of your sync speed (FTTC already worked in this way). With this change we no-longer get data on the currently configured BRAS profile.

Unfortunately the Portal hasn't yet been changed to reflect this, though our guides on using line data and diagnosing issues do reflect this change.

The BT speed tester should provide the currently configured BRAS profile.

ta,
Phil.

--
Phil Long
ZeN Performance and Process Improvement Manager
15.4" MacBook Pro with Thunderbolt- raaa!

Please note, I will not respond to unsolicited private messages.
The above post has been made by an ISP REPRESENTATIVE (although not necessarily the ISP being discussed in the post).
Standard User knight01
(learned) Thu 14-Jun-12 12:45:14
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Re: expected adsl2+ speed on 21cn


[re: SkyFire] [link to this post]
 
I requested a regrade to adsl2+ yesterday and it looks like the regrade happened overnight.
Before the regrade (on Zen 8000 active) my sync was 7808kbps @ line att: 37.0, noise margin: 6.2, and In the customer portal it states "Your current maximum download speed is 6888Kbps.
Your current line technology is WBMC."

Now the sync is
ADSL Link............................Downstream......Upstream
Connection Speed...............8807 kbps..........780 kbps
Line Attenuation...................40.0 db...............20.7 db
Noise Margin........................6.2 db.................5.7 db

I know its still early, but I was expecting my sync to be higher. How long does it take for the BT profile to be changed? The router I'm using is Netgear DGND3300v2 and is ADSL2+ capable.

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ZeN Active

[img]http://www.speedtest.net/result/1954670451.png[/img]

Edited by knight01 (Thu 14-Jun-12 12:48:26)

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