Noise Margin
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Noise Margin
29-11-2009 3:51 PM
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Sat, 2009-11-28 17:04:48 - Loss of synchronization :1
Sat, 2009-11-28 17:05:47 - LCP down.
Sat, 2009-11-28 17:05:48 - Loss of synchronization :2
Sat, 2009-11-28 17:05:49 - LCP down.
ADSL Link Downstream Upstream
Connection Speed 6848 kbps 448 kbps
Line Attenuation 18 db 5.5 db
Noise Margin 11 db 24 db
Re: Noise Margin
29-11-2009 5:39 PM
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It may well take well over 3 weeks but only if your line is stable with low error rates.
If it isn't stable or the errors are still considered high by the automated system it won't reduce at all.
However and this is rather important looking at your stats I would start checking your internal wiring.
Can you connect the router to the test socket with nothing else connected and report the stats.
Re: Noise Margin
01-12-2009 11:04 AM
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Re: Noise Margin
01-12-2009 11:15 AM
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Today 11:13 4610 kbps (576kB/s) 372 kbps (46.5kB/s) Share
Today 10:20 4607 kbps (576kB/s) 372 kbps (46.5kB/s) Share
Today 01:35 4613 kbps (577kB/s) 373 kbps (46.6kB/s) Share
Today 01:01 4607 kbps (576kB/s) 371 kbps (46.4kB/s) Share
Today 00:17 4635 kbps (579kB/s) 373 kbps (46.6kB/s) Share
Yesterday 23:15 4602 kbps (575kB/s) 372 kbps (46.5kB/s) Share
Yesterday 20:36 4355 kbps (544kB/s) 368 kbps (46kB/s) Share
Yesterday 13:35 4573 kbps (572kB/s) 371 kbps (46.4kB/s) Share
Yesterday 13:33 4571 kbps (571kB/s) 373 kbps (46.6kB/s) Share
Yesterday 10:54 4881 kbps (610kB/s) 368 kbps (46kB/s) Share
Re: Noise Margin
01-12-2009 8:28 PM
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I'm using a Netgear DG834 V1 V3.01.38, is it normal after losing sync for the noise margin to fluctuate?
Going to leave it for a couple of weeks to see if my IP will increase...
Re: Noise Margin
01-12-2009 8:55 PM
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First please check your phone line - can you hear/have you heard any crackling or other intermittent noise on the line? Dial a 1 to get rid of the dial tone. If you need more time before the NUT (number unobtainable tone) dial the quiet line test 17070 option 2. (Don't use any ringback or other test). Who is your Telephone Line Rental provider?
Can you also post the results from http://www.speedtester.bt.com/ - (you need Java Runtime Environment installed for this to work - the latest version for your OS).
Login to https://portal.plus.net/my.html?action=data_transfer_speed and advise what it says for your current profile/line speed.
If your graph wasn't from the Test socket could you give an Outline description of your installation -
1) Do you have an NTE5 Master LineBox (the type with the removeable lower front plate) and which logo it has on it.?
2) Whether you have any fixed extension wiring and sockets & how many, and roughly how the cables go from one to another;
3) What filters do you have and where is the Modem/Router plugged in?
4) Do you have a corded phone, do you have a cordless phone - if so what type - DECT or Analogue?
5) Is any other POTS (plain old telephone service) equipment (Faxes, Answer phones, Sky boxes or Alarms systems etc) plugged in/connected.
Re: Noise Margin
01-12-2009 9:01 PM
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My second guess would be something electrical that is on all the time. Is your router very near something electrical that is on all the time (I'm including PCs, monitors or printers etc. in that)?
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: Noise Margin
01-12-2009 11:06 PM
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and put an extension in the kitchen, week later I signed up to O2 and with there modem I can remember connection speed was around
7500 and noise margin was 8db, wasnt getting good speeds in the evening like everyone else so cancelled and joined Plusnet.
Theres no noise at all from the phone line.
It doenst make a difference if i connect via the master socket i get ramdon connection speeds?
Anotherone question's>
1) Do you have an NTE5 Master LineBox (the type with the removeable lower front plate) and which logo it has on it.?
Answer: Yes, Open Reach Logo (BT Installed)
2) Whether you have any fixed extension wiring and sockets & how many, and roughly how the cables go from one to another;
Answer: Yes, one extension, one cable to line box (BT Installed)
3) What filters do you have and where is the Modem/Router plugged in?
Answer: Still have two 02 filters (Installed), just bought new ones BT MF50/Excelsus not used. Modem currently in Line Box
DG834v1 & WTG624 v2.
4) Do you have a corded phone, do you have a cordless phone - if so what type - DECT or Analogue?
Answer: Corded Phone in extension, no cordless phones.
5) Is any other POTS (plain old telephone service) equipment (Faxes, Answer phones, Sky boxes or Alarms systems etc) plugged
in/connected
Answer: None
Re: Noise Margin
01-12-2009 11:16 PM
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Download speedachieved during the test was - 4268 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :7104 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 5000 Kbps
PlusNet:
Phone exchange:
CHIRK
Estimated line speed:
6 - Checked on 2009-11-06 18:54:58
Current line speed:
5000
Going to monitor things now if anything eletrical is distrubing the router.
Re: Noise Margin
01-12-2009 11:26 PM
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Unfortunately you are going to need to plug into that test socket (as per the picture in reply #1). I'd use one of your BT MF50 filters, so it's different from what you've had connected, first try your other modem/router - collect some stats and noise margin graphs and note how many time the connection drops over what period (should be able to get that info from the stats). Then do the same with the current modem/router.
If you can post Noise graphs from the other modem/router and stats as soon as you are able, so we can do some comparisons with your previous posts until you can post the latter lot.
Re: Noise Margin
01-12-2009 11:52 PM
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going to borrow another router tomorrow and do some more tests.
"Man went into a bar, he only had one arm. Guy sitting next to him said 'Hey, you've got your sleeve in my drink', man replied, 'There's no (h)arm in it' " Tommy Cooper
Re: Noise Margin
02-12-2009 9:05 AM
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The graph you posted in reply 2 showed the noise margin varying around two distinct levels, have you managed to identify what causes that? That graph is very indicative of something going on and off for short periods (fridge or freezer?).
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: Noise Margin
03-12-2009 2:18 PM
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Connection Time 72:22:11
Connecting to Server Connected
Negotiation Success
Authentication Success
Download speedachieved during the test was - 4355 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :7104 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 5000 Kbps
I have managed to connected at 6500 before, up for 72hrs doesnt look like budging.
Re: Noise Margin
03-12-2009 10:32 PM
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Re: Noise Margin
03-12-2009 11:17 PM
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