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Standard User hypertony
(committed) Mon 09-May-11 15:27:49
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Re: Draytek vigor 2820n on Enta


[re: b4dger] [link to this post]
 
I have snipped the show adsl info, showing the details needed.

Any help?


> sys version
Router Model: Vigor2800 series Version: 2.8.1 English
Profile version: 0x2 Status: 1 (0x189a82e1)
Router IP: 192.168.1.1 Netmask: 255.255.255.0
Firmware Build Date/Time: Fri Jan 4 13:33:9.49 2008
Revision: 374
ADSL Firmware Version: E.67.2.55 Annex A

> show adsl
Version= 119
DspFirmwareVersion= E.67.2.55
Connected= True
OperationalMode= G.Dmt
State= Showtime
LocalSNRMargin= 9.0 dB
LocalLineAttn= 43.0 dB
LocalTxPower= 11.9 dB
LocalInterleavedChannelRxRate= 3392000
LocalInterleavedChannelTxRate= 448000
LocalInterleavedChannelFEC= 15952
LocalInterleavedChannelCRC= 4
LocalInterleavedChannelHEC= 2
RemoteLineAttn= 25.0 dB
RemoteSNRMargin= 16 dB
SRA= Disable
PSDMask= Standard
ActivateLine= None
HostControl= Enable
AutoStart= True
Failsafe= False
Action= Startup
Standard= G.Dmt
UtopiaInterface= Level1
EcFdmMode= FDM
MaxBitsPerBin= 15
TxStartBin= 6
TxEndBin= 31
RxStartBin= 32
RxEndBin= 255
RxAutoBinAdjust= Disable
TxAttenuation= 0.0 dB
BitSwap= Enable
BitSwapUp= Enable
NTRMode= Disable
AnnexType= AnnexA
MaxDownRate= 255
PhysicalPort= 0
DetectNoise= Disable
Capability= AnnexA, Value=0x1
CodingGain= auto
FramerType= Type3
DyingGasp= Disable
Defaults= None
FULL_RETRAIN= Overall Retrain
>

- Tony Sutton
- Check out my Ford Focus ST170 site | View my Car's Dashcam
Standard User RobertoS
(sensei) Mon 09-May-11 16:22:43
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Re: Draytek vigor 2820n on Enta


[re: hypertony] [link to this post]
 
You said earlier you are connected at 2.5. I think you mean you have an IP Profile of 2500kbps.

You connection speed in those stats is 3392kbps, which does cause a 2500kbps profile. However you have a downstream (local) noise margin of 9dB rather than something a bit under 6dB that I would expect, and that 3dB costs 500-750kbps.

On 3424kbps connection you would have a 3000kbps IP profile. The step after that is 4000kbps connection giving 3500 profile.

It looks to me as if doing a reconnection with the router connected with just the filter and short ADSL cable to the test socket inside the master socket, then taking the stats immediately, would give us useful information. On your 43dB attenuation I would expect something in the upper upper half of a 5-7.5Mbps connection speed.

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
Standard User hypertony
(committed) Tue 10-May-11 12:02:52
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Re: Draytek vigor 2820n on Enta


[re: RobertoS] [link to this post]
 
Thanks, so it's all about the wiring... which confirms my thoughts. The wiring was already in place when we moved in the house.

BT pole -> BT master socket (downstairs) -> extension cable to upstairs -> socket -> 1M line extension to my ADSL router.

I think I would get better speed if the BT master socket is moved to upstairs, so it has shorter line length from the pole. But I don't fancy paying BT £150 for that!

Unless there is another way round to this?

- Tony Sutton
- Check out my Ford Focus ST170 site | View my Car's Dashcam


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Standard User b4dger
(knowledge is power) Tue 10-May-11 15:03:07
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Re: Draytek vigor 2820n on Enta


[re: hypertony] [link to this post]
 
I would start by re-posting your line stats when you are connected directly to the TEST Socket.

My attenuation is 51db and I'm connected at 5.9Mb so your lower attenuation should give to quite an improvement over my connection speed. It looks as if your Target SNR has been raised from 6db to 9db which will lower your current sync.

My BT Master Socket is in my loft so I use a filtered face plate (from ADSLNation) which allows me to run a dedicated RJ11 to the router in my study - so moving the socket doesn't have to be the solution.

Standard User hypertony
(committed) Tue 10-May-11 15:10:09
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Re: Draytek vigor 2820n on Enta


[re: b4dger] [link to this post]
 
Thanks. Is there a limit length of extension cable before it start to degrade?

- Tony Sutton
- Check out my Ford Focus ST170 site | View my Car's Dashcam
Standard User RobertoS
(sensei) Tue 10-May-11 21:56:59
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Re: Draytek vigor 2820n on Enta


[re: hypertony] [link to this post]
 
If it is BT-installed , or CW1308, or CAT5, not really.

If it is builder-installed burglar-alarm wire, that's a disaster.

If you open a socket and tell us what colour wires are connected to which numbered terminals we may be able to tell.

My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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