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Standard User jelv
(knowledge is power) Wed 26-Jan-11 20:10:30
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Re: Just switched to adsl2+ - high noise margin


[re: nadger] [link to this post]
 
No you can't - that's Max Premium which is 20CN only.

You just have to raise a ticket asking for the upstream to be uncapped.

jelv

Plusnet user since November 2001
Standard User krazykizza
(fountain of knowledge) Wed 26-Jan-11 23:01:59
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Re: Just switched to adsl2+ - high noise margin


[re: Wangmaster] [link to this post]
 
You have quite a high upstream noise margin, so I suspect this is what is causing for your upstream sync rate in particular to suffer. Raise a ticket to see why your upstream SNR is so high, they might be able to advise you if you've had frequent disconnections and help you solve them.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
AOL > Virgin Media > Tiscali > Falconnet > UKFSN > Norfolk Internet
2mbps > Shapped 512k > 1mbps! > 6.5mbps > 4.5mbps > 6.5mbps
ADSL Joy. 31db att, 9db SNR, EntaFail.
Standard User krazykizza
(fountain of knowledge) Wed 26-Jan-11 23:03:34
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Re: Just switched to adsl2+ - high noise margin


[re: Wangmaster] [link to this post]
 
your stats from previous your previous ADSL connection would be useful if you have them in a text document somewhere.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
AOL > Virgin Media > Tiscali > Falconnet > UKFSN > Norfolk Internet
2mbps > Shapped 512k > 1mbps! > 6.5mbps > 4.5mbps > 6.5mbps
ADSL Joy. 31db att, 9db SNR, EntaFail.


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Standard User Wangmaster
(newbie) Thu 27-Jan-11 00:10:29
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Re: Just switched to adsl2+ - high noise margin


[re: krazykizza] [link to this post]
 
My stats 1 week before ADSL2+

It should be noted I did have major line problems and frequent disconnects a while back (after a thunderstorm), I think plusnet raised the target SNR which helped, but i would still lose sync whenever the phone rang. Turned out I had an old PBX mini-exchange connected (long story), now this is out of the picture I held sync for 6 days before being moved onto ADSL2+.

I think BT have me on an IP profile of 5.5meg, it was around 7 (i used to sync at nearly max speed). Surely with these stats I should be syncing higher?

I've raised a ticket with Plusnet and copied my stats. Basically I want my line re-set as if its a new connection and let it set at whatever speed my line supports (the exchange is just down the road from me) so hopefully something a bit better!

Oh and i ran the DMT tool to check the SNR for around an hour, it reported a 0.8dB average fluctuation, at 6pm - 7pm, with incoming and outgoing calls on the same line.
Standard User jelv
(knowledge is power) Thu 27-Jan-11 00:27:25
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Re: Just switched to adsl2+ - high noise margin


[re: krazykizza] [link to this post]
 
Rubbish!

If the sync speed is capped below the speed the line conditions would allow it to sync at you ALWAYS get a higher noise margin.

jelv

Plusnet user since November 2001
Standard User Wangmaster
(newbie) Thu 27-Jan-11 00:33:25
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Re: Just switched to adsl2+ - high noise margin


[re: jelv] [link to this post]
 
In reply to a post by jelv:
If the sync speed is capped below the speed the line conditions would allow it to sync at you ALWAYS get a higher noise margin.


So that accounts for the upstream margin? If I can get the downstream margin reduced I should sync faster no?

/edit

Also checking through plusnet they are saying now:
Estimated line speed:
6Mb (This may vary between 10Mb and 19.5Mb) - Checked on 2011-01-25 17:22:16
Current line speed:
21 Mb

Up from 5.5Mb earlier today. Plusnet say "current line speed" is based on my sync speed. But my router says 12771 Kbps. This is silly, its reporting 15 hours uptime or 5 hours depending on where i look on the config page.. think the router is playing up! ill try the new one in the morning and report back.

Edited by Wangmaster (Thu 27-Jan-11 00:39:33)

Standard User jelv
(knowledge is power) Thu 27-Jan-11 00:40:25
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Re: Just switched to adsl2+ - high noise margin


[re: Wangmaster] [link to this post]
 
Yes.

Because of your previous problems your target noise margin will have been set to 15 (the highest setting). If your line stays absolutely stable with few errors and no disconnections Plusnet will be amenable to a request to restart the line training which starts with a target of 6db - that should give you a much higher sync.

jelv

Plusnet user since November 2001
Standard User Wangmaster
(newbie) Thu 27-Jan-11 01:04:36
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Re: Just switched to adsl2+ - high noise margin


[re: jelv] [link to this post]
 
Nice, thanks for that. Think i'll leave it sync'd for a couple days and ask for that, cheers jelv smile
Standard User nadger
(eat-sleep-adslguide) Thu 27-Jan-11 09:33:03
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Re: Just switched to adsl2+ - high noise margin


[re: jelv] [link to this post]
 
I thought you needed to raise a ticket but mistakenly thought that was a shortcut blush

plusnet usergroup cool
Standard User RobertoS
(sensei) Thu 27-Jan-11 09:41:10
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Re: Just switched to adsl2+ - high noise margin


[re: Wangmaster] [link to this post]
 
In reply to a post by Wangmaster:
Also checking through plusnet they are saying now:
Estimated line speed:
6Mb (This may vary between 10Mb and 19.5Mb) - Checked on 2011-01-25 17:22:16
Current line speed:
21 Mb

Up from 5.5Mb earlier today. Plusnet say "current line speed" is based on my sync speed. But my router says 12771 Kbps. This is silly, its reporting 15 hours uptime or 5 hours depending on where i look on the config page.. think the router is playing up! ill try the new one in the morning and report back.
That's all cock-eyed. Current Line Speed in Plusnet-speak is their copy of your IP Profile.

What does a BT Performance Test say about connection speed and IP Profile?

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - O2 Standard.
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