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Contributor
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Message 1 of 13

Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

Line state:Connected
Connection time:0 days, 00:02:14
Downstream:4.906 Mbps
Upstream:448 Kbps
 
ADSL Settings
VPI/VCI:0/38
Type:PPPoA
Modulation:G.992.1 Annex A
Latency type:Interleaved
Noise margin (Down/Up):16.1 dB / 10.0 dB
Line attenuation (Down/Up):30.9 dB / 16.0 dB
Output power (Down/Up):19.8 dBm / 12.3 dBm
FEC Events (Down/Up):518290 / 1475
CRC Events (Down/Up):619 / 733
Loss of Framing (Local/Remote):0 / 0
Loss of Signal (Local/Remote):0 / 0
Loss of Power (Local/Remote):0 / 0
HEC Events (Down/Up):9524 / 568
Error Seconds (Local/Remote):9430 / 6757

 

May, 2011

 

1) Woke up to find HomeHub "dead": Phoned BT, reordered contract & got a HomeHub 2.0 sent.

2) HomeHub 2.0 had a "fix" on, after noticing my DownStream & Upstream very low - Engineer visits & removes fix.

3) During time until August disconnections not on a frequent, but noticable period.

 

Late July

 

1) Disconnections happening on a noticable period.

2) Still in contact with MOD(s) from Ticket (1). After weeks, finally Engineer (2) arrives.

3) Engineer places filter on Master Socket, explaining that trying to try "Test Socket" was pointlessly advised by you.

4) Engineer thinks disconnections due to Sky Box sending "packets" and getting into causing disconnection.

5) Engineer does not check external/internal wiring. - Knew problem would continue.

 

August

 

1) Connection disconnection every day on/off Internet (around 10-11am, then when I'm on the computer)

2) Connection has dropped 2MB on ADSL Stats to 4.9MB

3) Noise Margin has increased from 6.0mB to 15/16 mB showed 3.0mB for a quick second, then 15 & refresh

4) 5th August, by the time I finished writing this, the connection has disconnected once again, upstream now 5.4

 

Line state:Connected
Connection time:0 days, 00:00:49
Downstream:5.406 Mbps
Upstream:352 Kbps
 
ADSL Settings
VPI/VCI:0/38
Type:PPPoA
Modulation:G.992.1 Annex A
Latency type:Interleaved
Noise margin (Down/Up):9.7 dB / 6.0 dB
Line attenuation (Down/Up):30.9 dB / 16.0 dB
Output power (Down/Up):19.8 dBm / 12.4 dBm
FEC Events (Down/Up):372415 / 1161
CRC Events (Down/Up):368 / 287
Loss of Framing (Local/Remote):0 / 0
Loss of Signal (Local/Remote):0 / 0
Loss of Power (Local/Remote):0 / 0
HEC Events (Down/Up):5573 / 213
Error Seconds (Local/Remote):9731 / 7068

Exchange is showing as "Amber":


http://usertools.plus.net/exchanges/?exchange=Edinburgh%20South%20Queensferry&exact=1313&plugin=vp

 

Could the problem be the Home Hub with an error being so unstable?

 

Every refresh on the ADSL stats shows an increase on Errors & the Noise Margin is unstable, showing different each time.

 

 


 

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12 REPLIES 12
Recognised Expert
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Message 2 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

Hi PaperBag,

 

First off - The Sky box:

 

The comms port on the back (RJ11 socket) which you plug into your telephone line - Have you tried to place a filter in between the cable from the Sky box and the telephone circuit?

 

Secondly - The Filter on the Master Socket: It should have different ports for ADSL and standard Telephone jacks. Does it look like this:

 

adsl-nteface-front-small.gif

 

If it does, make sure that the Homehub is the only device plugged into the left square RJ11 ADSL port.

 

Make sure that all of your telephones are plugged into the right BS6312 port (Standard telephone port).

 

Thirdly: Homehub Reset - I say this all the time and in some cases it works. Have you given your Homehub a hard reset and seen if performance improves? You may also want to make sure it is in a well ventilated space.

 

Another thing is you may be on a banded profile at the exchange because your upstream speed should be stuck at 448Kbps on ADSLMax unless you have a huge upstream attenuation (You don't). You will need to contact the mods to confirm this and get it lifted.

 

Also, your Noise Margin is a bit high which could be the result of numerous disconnections which may have caused the DLM to reduce your speed.

 

The fact that the VPs at your exchange are 'Amber' do not have any effect on your connection speed/stats to the DSLAM. It is the throughput you can achieve within your IP Profile which is affected when you are on a 'Hot VP'. 

 

Let me know if any of the filter bits above work 🙂

 

I hope this helps

___________________________________

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Distinguished Sage
Distinguished Sage
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Message 3 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

you are not on a banded profile as that only applies to 21CN  and your modulation is 992.1 adslmax



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Contributor
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Message 4 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

I dont know if that is stating the obvious ImJolly, or something wrong there?:)

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Recognised Expert
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Message 5 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

I would presume the engineer has disconnected the bell wire from terminal 3 

 

Here's a guide on how to take it out using the kits site (great site aswell!) http://www.kitz.co.uk/adsl/socket.htm

Bell wire 2.jpg

 

you could check that it is also disconnected from all extension sockets, this can help reduce the interference to the broadband picked up from the internal wiring.  

 

If the engineer hasn't checked, probably worth you doing so 🙂

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Distinguished Sage
Distinguished Sage
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Message 6 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)


@PaperBag wrote:

I dont know if that is stating the obvious ImJolly, or something wrong there?:)



just pointing out that your connection is not in banded profile and therefore no need to contact the mods to get banding lifted.  Banded profiles only apply to 21CN connections



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Contributor
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Message 7 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

Hi there,

 

I've done a clean on my computer (cause the CD Drive isn't ejecting 😞 /cry - anyone know how to solve this!)

Anyway, disconnected Ethernet cable, had a clean, ALOT of dust, and got back with the Hub Restart.

 

Line state:Connected
Connection time:0 days, 00:07:09
Downstream:5.5 Mbps
Upstream:448 Kbps
 
ADSL Settings
VPI/VCI:0/38
Type:PPPoA
Modulation:G.992.1 Annex A
Latency type:Interleaved
Noise margin (Down/Up):15.1 dB / 10.0 dB
Line attenuation (Down/Up):30.9 dB / 16.0 dB
Output power (Down/Up):19.9 dBm / 12.3 dBm
FEC Events (Down/Up):28216 / 208
CRC Events (Down/Up):2 / 3
Loss of Framing (Local/Remote):0 / 0
Loss of Signal (Local/Remote):0 / 0
Loss of Power (Local/Remote):0 / 0
HEC Events (Down/Up):0 / 0
Error Seconds (Local/Remote):2 / 4

The error seconds and CRC etc are really low compared to what it was, couple of seconds on the Internet, never mind 7minutes.

The Noise Margin is still high due to the previous disconnects, some sort of progress somehow? :X

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Contributor
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Message 8 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

1) Less errors Good!

2) Downstream 5.5 Good if stays on!

3) Connection now slow & BT Speed downstream of 190kbps BAD!

4) Wtf 😞

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Distinguished Sage
Distinguished Sage
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Message 9 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

there should be small hole on the front of your cd/dvd drive and if you insert a paperclip or similar it will release your cd tray

 

can you run btspeedtester and post results please



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Contributor
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Message 10 of 13

Re: Random Disconnections - 2 Engineers - Unstable Connection - (Long Read)

Download speedachieved during the test was - 84 Kbps
 For your connection, the acceptable range of speeds is 50-250 Kbps.
 Additional Information:
 Your DSL Connection Rate :5504 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
 IP Profile for your line is - 135 Kbps

 

My IP Profile just realised now set to 135kbps.

Need it up, however should go up anyway wit 3/5days consistant, if I can keep connected! if I get a reset on my Noise.

 

Secondly, my DVD Rom doesn't have one, or I'm missing it.

Need a new PC/Tower soon anyway!

 

Guess I just needa wait 3 days or so, or inform MOD 😉

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