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Standard User deleted
(deleted) Fri 11-Dec-09 22:01:08
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Can someone just look at my states pls


[link to this post]
 
Uptime:0 days, 1:31:39
Modulation:G.992.5 annex A
Bandwidth (Up/Down) kbps/kbps:1,282 / 9,491
Data Transferred (Sent/Received) MB/MB :17.38 / 19.54
Output Power (Up/Down) dBm:12.0 / 19.0
Line Attenuation (Up/Down) dB:18.5 / 35.5
SN Margin (Up/Down) dB:6.5 / 7.0
Vendor ID (Local/Remote):TMMB / BDCM
Loss of Framing (Local/Remote):0 / 0
Loss of Signal (Local/Remote):2 / 0
Loss of Power (Local/Remote):0 / 0
Loss of Link (Remote):0
Error Seconds (Local/Remote):320 / 0
FEC Errors (Up/Down):0 / 253,398
CRC Errors (Up/Down):351 / 2
HEC Errors (Up/Down):332 /
2

Does the loss of signal mean its disconnected?

and does this mean its lost connection also

Dec 11 21:20:02xDSL linestate down


thanks for the help
Standard User Apprentice
(knowledge is power) Fri 11-Dec-09 22:33:36
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Re: Can someone just look at my states pls


[re: deleted] [link to this post]
 
and does this mean its lost connection also

Dec 11 21:20:02xDSL linestate down

Router lost sync with exchange.

When you have time read this KITZ link re. errors.

Alastair

omadasafisho
Standard User deleted
(deleted) Fri 11-Dec-09 22:53:26
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Re: Can someone just look at my states pls


[re: Apprentice] [link to this post]
 
thanks for that,,just reading through that. cant find why it would loose sync with exchange,,would that be congestion do you know or somethin to do with my line.i assume a loss of sync will cause xbox libe to cut of or internet


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Standard User deleted
(deleted) Sat 12-Dec-09 18:55:53
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Re: Can someone just look at my states pls


[re: deleted] [link to this post]
 
Going by the error seconds and error figures your line isn't the quietest from a noise point of view and any significant burst of noise can override your ADSL signal causing a loss of signal. I.e. a dropped connection, it's not uncommon on copper, i.e. standard telephone, ADSL lines. This noise can come from just about any electrical equipment, in or out of your home anywhere between you and the exchange. This time of year is particularly notorious with things like Xmas lights. Let alone that for other various reasons, winter is much worse than summer for noise on ADSL lines.

If it happens a lot and becomes a nuisance you could always either ask your ISP to raise your SNRM to trade some speed for the possibility of greater stability or, if your router supports the DMT utility, you can try doing it yourself.

http://dmt.mhilfe.de/

Though it is worth noting that if the occasional noise burst causing the loss of signal is bad enough, no amount of SNRM tweaking will cure it.
Standard User adebov
(eat-sleep-adslguide) Sat 12-Dec-09 22:09:01
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Re: Can someone just look at my states pls


[re: deleted] [link to this post]
 
I'd say Craggs would be better off trying the usual improvement techniques before using DMT to tweak the margin.
He's not getting a particularly good speed for a 35dB line (would normally be way over 11Mbps) and this, along with the errors and the drop-out, may well be caused by noise due to iffy internal phone wiring.

Craggs; try the following: -
1. Remove the front cover of your BT master socket. If there's another phone socket inside, plug the router (via a microfilter) into that and see if your speed increases and/or the error rates drop.
2. If this helps and you can leave the router at the master socket, get yourself an ADSL filtered face-plate. If you can't leave the router at the master socket, remove the ring wire (connection #3) in all phone sockets in the house (disconnecting the ring wire can lead to massive drops in noise and can increase connection speed).

Ade

ADSL2+ with BE
DL Sync around 4.8Mbps
UL Sync 1088kbps

DG834GT with DGTeam firmware
Standard User deleted
(deleted) Sun 13-Dec-09 02:22:31
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Re: Can someone just look at my states pls


[re: adebov] [link to this post]
 
You're right, at least as to doing the things you suggest first. For I just noticed that his greatest numbers of errors, i.e. CRC and HEC errors and errored, which are most relevant are mostly on the local side, i.e. his. So it would be well worth him checking out his own wiring first. In fact, I just noticed that his local or Upstream SNRM seems very low and generally, all else being equal, one expects that to be significantly higher than the Downstream SNRM. Strongly suggests that something isn't quite right there.
Standard User adebov
(eat-sleep-adslguide) Sun 13-Dec-09 11:53:55
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Re: Can someone just look at my states pls


[re: deleted] [link to this post]
 
In reply to a post by jcym:
I just noticed that his local or Upstream SNRM seems very low and generally, all else being equal, one expects that to be significantly higher than the Downstream SNRM.


Often the case with rate adaptive ADSL which is unable to attain maximum sync.
In the case of ADSL2+ annex A, the maximum upload is just under 1.4Mbps. As he's not getting that, his modem will train to the same target margin as the downstream (i.e. 6dB). That is why the SNRMs are the same (mine are, too).

The only reason the upstream margin on BT's geriatric old ADSL1 product is significantly higher than the downstream margin is almost every single line can easily make the 448kbps upstream (so the margin is normally higher than 6dB).

Nothing wrong; just how the system works on longer lines, that's all.

Ade

ADSL2+ with BE
DL Sync around 4.8Mbps
UL Sync 1088kbps

DG834GT with DGTeam firmware
Standard User deleted
(deleted) Sun 13-Dec-09 17:34:35
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Re: Can someone just look at my states pls


[re: adebov] [link to this post]
 
ok guys so there looks like a problem with the line,yeah...ive only ever sync'd at above 11mb once..since then is been around 10mb,,and last night after a drop out syncd at 8.8mb..

i only got connected last tue and its to o2..thought i would of got 11mb myself so was supprised.

on to the master socket,,them results im affraid are the router plugged straight into the test socket with the plate removed..i have only the one main socket in my place with no further extentions and there is no bell wire connected.

i used to be on LLU 1mb and never had any disconnection,but i assume adsl2+ works different.

so whats my options apart from the socket and having my snr put up

this is my latest results been connected for 2.5 hours,,and i notice my snr is 5.5 is that low,,it does go up to around 7 in the day

Uptime: 0 days, 2:30:33
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 1,265 / 10,093
Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
Output Power (Up/Down) [dBm]: 12.0 / 19.0
Line Attenuation (Up/Down) [dB]: 19.0 / 35.5
SN Margin (Up/Down) [dB]: 7.0 / 5.5
Vendor ID (Local/Remote): TMMB / BDCM
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 0 / 0
FEC Errors (Up/Down): 4 / 37,598
CRC Errors (Up/Down): 4 / 15
HEC Errors (Up/Down): 86 / 12

i will add i telneted the router to the google dns at the time i restated the router 2.5 hours ago if that helps
Standard User adebov
(eat-sleep-adslguide) Tue 15-Dec-09 19:22:42
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Re: Can someone just look at my states pls


[re: deleted] [link to this post]
 
If you're seeing no improvement using the test socket, you can only put it down to a rubbish line.

Odds on it's either got a large section of aluminium cable or it's overhead (suspended from poles).

So you're choices are to report it as a fault (and there's a 99.9% chance BT will find no fault with the line and you'll get a huge bill and no improvement); or to request O2 change your target margin to 9dB (which will also apply to the upstream).
You'll lose a bit of speed (somewhere around 1-2Mbps) from your downstream and maybe a couple of hundred kbps off your upstream, but the error rate will fall considerably and your router might just be able to hold sync through the noise.

Ade

ADSL2+ with BE
DL Sync around 4.8Mbps
UL Sync 1088kbps

DG834GT with DGTeam firmware
Standard User deleted
(deleted) Wed 16-Dec-09 10:56:14
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Re: Can someone just look at my states pls


[re: adebov] [link to this post]
 
ill not report the a line fault as like you say bt will charge,,the funny thing is ive been monitoring the the line,what i mean by that is checking the stats as much as i can,,now a couple of things there does not seem as many errors on the line,,and ive been connected for 3 days now and been seeing a down stream snr of as low as 4.5

im so tempted to reboot after this time and see if i can sync at the just over 11mb i had only once.

if o2 raise my snr and it will cut about 1.2mb down of the connection,there would be no point me stopping on the upto 20mb id be better of goin adsl max

im going to order one of them filtered faceplates and put it on the phone socket,just which one to buy..just going to add,the line is not that old compared to some i had it installed new around 9yrs ago..
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