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Steve_Baker
Contributor
709 Views
Message 1 of 14

Drop in Sync and D/L speed again

Hi,

 

A couple of months ago I had a sudden drop in Sync D/L speed  and it was fixed by a new HH and a complete re wire of my extensions new face plate filter and a direct RJ11 cable link from BT socket to HH so any problems with my phones would not affect my BB. This seemed to have worked for a while but recently (2-3 weeks) my figures have dropped again from 12 Mbps to 2.2 Mbps as indicated below. Is it possible to have the BRAS/Profile reset so I can see if the line will again stabilise, or does it require some other form of intervention return to a line that has been sold as a rock for years.

 

 

Line stateConnected
Connection time0 days, 7:16:24
Downstream2,272 Kbps
Upstream804 Kbps

ADSL settings

VPI/VCI0/38
TypePPPoA
ModulationITU-T G.992.5
Latency typeInterleaved
Noise margin (Down/Up)30.6 dB / 4.7 dB
Line attenuation (Down/Up)35.0 dB / 19.4 dB
Output power (Down/Up)20.4 dBm / 12.4 dBm
Loss of Framing (Local)98
Loss of Signal (Local)13
Loss of Power (Local)0
FEC Errors (Down/Up)18 / 12
CRC Errors (Down/Up)0 / 2147480000
HEC Errors (Down/Up)nil / 19579
Error Seconds (Local)93
Steve
0 Ratings
13 REPLIES 13
Guru
701 Views
Message 2 of 14

Re: Drop in Sync and D/L speed again

Your connection will be in a banded profile .... because of the high noise margin.

 

See other posts on the forum .... re- noise on adsl2+.

 

Also you appear to have several loss of signal errors ....

 

Is the line quiet?  17070 option 2

 

 

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pennyandchris
Aspiring Contributor
686 Views
Message 3 of 14

Re: Drop in Sync and D/L speed again

To do the line test, does it matter whether you use the ordinary landline or hubphone?

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Guru
682 Views
Message 4 of 14

Re: Drop in Sync and D/L speed again

Corded phone if you have one ....

 

If not, dect phone .... not hub fone.

 

You may hear a little hiss with dect phone.

 

But you don't want to hear crackling ....    😉

 

It drops line connections.

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Highlighted
Steve_Baker
Contributor
672 Views
Message 5 of 14

Re: Drop in Sync and D/L speed again

Quiet Line test is silent hardwired or DECT

Steve
0 Ratings
Guru
663 Views
Message 6 of 14

Re: Drop in Sync and D/L speed again

Read through this thread Steve .... my posts on noise eradication.

 

See if anything jumps out.

 

http://community.bt.com/t5/BB-in-Home/Poor-Broadband-speed/m-p/14217#M8397

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Steve_Baker
Contributor
656 Views
Message 7 of 14

Re: Drop in Sync and D/L speed again

Thanks for the link, the BB RJ11 cable was passing a couple of external HD power supplies  which are used for daily backups at 0500 in the morning and it seems all of the signal loss happens overnight as Im using it all day. I have re routed the BB cable so it passes nothing but runs parralell to a BB cable from the HH going in the opposite direction to my TV, Blu Ray player, Xbox etc. Another question now springs to mind can interferance be induced on the BB cable going to my TV etc. by the Xbox power supply?

Steve
0 Ratings
Guru
653 Views
Message 8 of 14

Re: Drop in Sync and D/L speed again

Impulse noise has a mind of its own .... and an inexact science ...   🙂

 

Try to think segregation as much as possible ... data ...  and power ....

 

Keep them apart as much as possible ... and remember crt monitors and PC cpu' and fans can all cause impulse noise. So can cheap dect phone base stations using wireless frequencies up to 2.2mhtz.

 

I always recommend a fully shielded and braided router cable ....  

 

http://www.amazon.co.uk/Belkin-Hi-Speed-Internet-Modem-RJ11M-M/dp/B000FO6I4I/ref=pd_cp_ce_0

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Steve_Baker
Contributor
622 Views
Message 9 of 14

Re: Drop in Sync and D/L speed again

Re routing the data cable seems to have done the trick, now how to get BT to move me out of the 'banded profile' so my line and profile can stabilise at a higher sync and d/l speed:

 

Line stateConnected
Connection time2 days, 2:41:00
Downstream2,272 Kbps
Upstream804 Kbps

ADSL settings

VPI/VCI0/38
TypePPPoA
ModulationITU-T G.992.5
Latency typeInterleaved
Noise margin (Down/Up)29.1 dB / 6.3 dB
Line attenuation (Down/Up)35.0 dB / 19.3 dB
Output power (Down/Up)20.5 dBm / 11.9 dBm
Loss of Framing (Local)13
Loss of Signal (Local)1
Loss of Power (Local)0
FEC Errors (Down/Up)529 / 60
CRC Errors (Down/Up)0 / 2147480000
HEC Errors (Down/Up)nil / 19946
Error Seconds (Local)1
Steve
0 Ratings
Guru
613 Views
Message 10 of 14

Re: Drop in Sync and D/L speed again

Try a reset now, before dark .... SNR still well up there...

 

then post line stats ...  😉

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