ZERO difference in speed following conversion to ADSL2+
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ZERO difference in speed following conversion to ADSL2+
14-02-2010 7:09 PM
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After another couple of weeks, numorous support calls,questions and fault checks , the line speed is exactly the same as when I was on ADSL1:
Estimated line speed: 6 - Checked on 2010-01-01 16:09:49 Current line speed: 4000
I've done everything that Plusnet Support have asked and they still cant get this profile reset. My DSL router shows:
noise margin upstream: 0 db
output power downstream: 20 db
attenuation upstream: 17 db
noise margin downstream: 10 db
output power upstream: 12 db
attenuation downstream: 33 db
i'm 1 mile from my exchange and I currently get about 4Mbps. I hoped to get about 10Mbps downstream on 21CN. I'm really annoyed with Plusnet support at this point. Any help is much appreciated.
Thanks
![Cry Cry](/html/@6B4B63041062049E874E6843927E9ADE/images/emoticons/cry.gif)
Re: ZERO difference in speed following conversion to ADSL2+
14-02-2010 7:38 PM
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Without looking at your account, we will not normally have had to change any modulation on your ccount. Once on 21CN with the ADSL2+ option, there are no further options from our side to control ADSL/ADSL2/ADSL2+ setting, this becomes down to your modem/router.
Re: ZERO difference in speed following conversion to ADSL2+
14-02-2010 7:39 PM
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Re: ZERO difference in speed following conversion to ADSL2+
14-02-2010 7:47 PM
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Quote from: magicshoes the line speed is exactly the same as when I was on ADSL1:
So what is it, you've not quoted it, either before or after?
As OldJim says, it's available along with the other stats from your router.
Also please say what make & model it is.
Your attenuation figure suggests that you SHOULD have had almost 8mbps on ADSL1 anyway so may well have a serious wiring problem.
(and ADSL2+ nearer 13mbps!)
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 2:22 PM
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My router model is a Zyxel Prestige 660hn-f1z.
My Download Speed has always ranged 4Mbps up to 5.5Mbps before and after being converted to the 21CN network.
So how do I get the Line profile reset - from the plusnet High Speed Broadband link in Members Centre, Connection setting it still says:
Telephone number:
<withheld>
Phone exchange:
<withheld>
Estimated line speed:
6 - Checked on 2010-01-01 16:09:49
Current line speed:
4000
i think my speed is being restricted in some way.
Thanks again.
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 2:26 PM
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Without that everything is pure guesswork
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 2:43 PM
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Quote from: Oldjim You still haven't provided the speed information from your router
Indeed, personally I'm losing interest.
The router is advertised as ADSL2+ so, IF SET UP CORRECTLY, should work fine in ADSL2+ mode.
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 4:57 PM
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Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 5:09 PM
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DSL STANDARD: ADSL2PLUS
UPSTREAMRATE: 448 kbps
DOWNSTREAMRATE: 5656 kbps
UPSTREAM ATTAINABLE RATE: 22675 kbps
DOWNSTREAM ATTAINABLE RATE: 6216 kbps
From the GUI you would just see
UPSTREAMRATE: 448 kbps
DOWNSTREAMRATE: 5656 kbps
So does my speed profile being set as below, mean anything?
Telephone number:
<withheld>
Phone exchange:
<withheld>
Estimated line speed:
6 - Checked on 2010-01-01 16:09:49
Current line speed:
4000
Thanks
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 5:22 PM
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Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 9:13 PM
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BT SPEEDTESTER SHOWS:
----
Download speedachieved during the test was - 624 Kbps
For your connection, the acceptable range of speedsis 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :5656 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 4000 Kbps
The throughput of Best Efforts (BE) classes achieved during the test is - 30.93:22.92:46.15 (SBE:NBE:PBE)
These figures represent the ratio while sententiously passing Sub BE, Normal BE and Priority BE marked traffic.
---
Router DSL line stats:
noise margin upstream: 0 db
output power downstream: 20 db
attenuation upstream: 17 db
tone 0- 31: 00 00 00 00 24 55 66 77 77 77 77 77 66 65 43 20
tone 32- 63: 07 88 9a aa ab bb bb bb 0b bc bc bb bb bb cb bb
tone 64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
noise margin downstream: 12 db
output power upstream: 12 db
attenuation downstream: 33 db
tone 0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 32- 63: 06 78 99 9a aa aa bb ab bb bb bb bb bb bb bb ab
tone 64- 95: 0b bb bb ba ab ba ba aa aa ab ba ab ba aa aa aa
tone 96-127: aa a9 a9 9a 99 ba aa a9 a8 88 89 97 68 89 99 98
tone 128-159: 88 89 99 88 67 87 89 68 69 68 47 88 78 77 87 87
tone 160-191: 62 76 87 89 76 87 72 77 76 76 67 76 54 66 56 66
tone 192-223: 65 25 43 11 00 11 45 44 32 20 22 30 44 52 44 41
tone 224-255: 21 22 22 21 02 24 22 33 23 02 12 22 32 20 01 22
tone 256-287: 20 00 10 10 21 10 21 10 10 01 10 00 00 00 00 00
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
thanks in advance for any further advice.
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 9:20 PM
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However the thing which is worrying is the upstream noise margin of 0dB which is either a reporting error or something is badly adrift. Given that your first report had the same value I would assume it is a reporting error
Can you plug the router into the test socket and advise the sync speeds, attenuation and noise margin
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 10:19 PM
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Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 10:48 PM
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DSL Up 9624 kbps / 448 kbps
BT Speed test now says:
Download speedachieved during the test was - 1083 Kbps
For your connection, the acceptable range of speedsis 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :9624 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 4000 Kbps
Router DSL line stats show:
noise margin upstream: 30 db
output power downstream: 20 db
attenuation upstream: 0 db
tone 0- 31: 00 00 00 03 34 45 66 67 77 77 77 76 66 55 43 20
tone 32- 63: 07 78 99 9a aa aa aa ab ab aa aa ab ba aa ba aa
tone 64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
noise margin downstream: 13 db
output power upstream: 12 db
attenuation downstream: 33 db
tone 0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 32- 63: 07 78 99 9a aa aa aa ab ab aa aa ab aa ba aa aa
tone 64- 95: 0b aa ab aa aa aa aa bb aa aa bb aa ba aa aa a9
tone 96-127: 9a 9a a9 99 a9 aa 99 99 9a 9a 9a 99 9a 9a 99 a9
tone 128-159: 99 9a 99 98 89 99 99 a9 99 8a 99 99 99 98 99 99
tone 160-191: 87 98 98 89 88 99 98 98 98 88 98 99 99 99 89 99
tone 192-223: 97 99 98 88 89 88 98 98 87 77 97 98 89 88 76 88
tone 224-255: 85 68 88 88 77 78 78 78 78 58 67 87 87 76 44 67
tone 256-287: 75 47 86 76 85 74 66 65 42 26 55 53 24 25 45 37
tone 288-319: 55 47 56 55 66 66 54 54 55 65 66 64 54 66 64 55
tone 320-351: 55 54 44 44 22 23 22 04 44 13 03 23 32 32 34 44
tone 352-383: 43 42 32 42 40 41 42 42 23 22 22 42 44 24 44 44
tone 384-415: 44 22 44 44 23 22 34 42 22 22 22 22 22 12 22 12
tone 416-447: 12 22 22 12 22 20 22 11 12 20 22 22 21 10 00 00
tone 448-479: 11 10 01 11 00 00 00 01 11 00 01 10 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Re: ZERO difference in speed following conversion to ADSL2+
16-02-2010 10:57 PM
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DSL Up 10359 kbps / 448 kbps
noise margin upstream: 30 db
output power downstream: 20 db
attenuation upstream: 17 db
noise margin downstream: 12 db
output power upstream: 12 db
attenuation downstream: 32 db
Sometimes this router does seem to report 0 on the noise margin upstream.
Think I'll need to sort out my internal wiring, leave the router up and running and see if the line profile improves, is this the right course of action.
Thank you very much for the help!
cheers
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