2-wire 2700 questions.

trophymick · Jan 06, 2009, 09:05:50

I'll keep posting until I get it right Rik

It's all Swahili brail to me

DSL Connection Details
DSL Line (Wire Pair):    Line 1 (inner pair)
Protocol:    G.DMT Annex A
Downstream Rate:    2592 kbps
Upstream Rate:    448 kbps
Channel:    Interleaved
Current Noise Margin:    14.0 dB (Downstream) 21.0 dB (Upstream)
Current Attenuation:    48.6 dB (Downstream) 27.5 dB (Upstream)
Current Output Power:    18.3 dBm (Downstream) 12.2 dBm (Upstream)
DSLAM Vendor Information:    Country: {0xB5} Vendor: {TSTC} Specific: {0x00}
PVC Info:    0/38

Rik · Jan 06, 2009, 09:08:14

Looks like you have a target noise margin of 15db, Mick, have you had a lot of line instability (dropped connections). If the 2700 works its magic, your line should gradually recover and you could gain another 1500-2000kbps in sync speed. Certainly, at present, that sync is low for the attenuation, I manage around 3400 on a 57db line.

trophymick · Jan 06, 2009, 09:16:49

Yes Rik, it was abysmal just before moving to IDNet, throttled down to less than a meg and occasional dropped connections, and no one to talk to about it

Like I've said before, very impressed so far

And if there's possibly more to come.......................

Rik · Jan 06, 2009, 09:18:02

If the router can maintain sync for 14 days, the NM will reduce by 3db, repeating until you reach 6db, or the line becomes unstable.

Sebby · Jan 06, 2009, 14:18:33

Quote from: trophymick on Jan 06, 2009, 09:16:49
Yes Rik, it was abysmal just before moving to IDNet, throttled down to less than a meg and occasional dropped connections, and no one to talk to about it Like I've said before, very impressed so far And if there's possibly more to come.......................

Throttling is something different - it is managed by the ISP and won't affect your line conditions as such. Did you router ever lose connection at all?

trophymick · Jan 06, 2009, 20:24:47

Quote from: Sebby on Jan 06, 2009, 14:18:33
Throttling is something different - it is managed by the ISP and won't affect your line conditions as such. Did you router ever lose connection at all?

Yes, of late it was losing it quite regularly, and so was I

trophymick · Jan 06, 2009, 20:29:36

My connection dropped this afternoon (about 4pm ish), then re-established itself almost immediately, ever since my connection speed has dropped dramatically

Latest test = http://www.speedtest.net/result/385278418.png

A few minutes later = http://www.speedtest.net/result/385279413.png

kinmel · Jan 06, 2009, 20:44:05

what is your SNR and sync rate?

trophymick · Jan 06, 2009, 21:12:30

You will have to bear with me here, where will I find them

Is it this?

Current Noise Margin:        12.0 dB        20.0 dB
   Current Attenuation:       49.3 dB       28.5 dB
   Current Output Power:       17.4 dBm       12.2 dBm

kinmel · Jan 06, 2009, 21:24:05

Your noise margin has improved since earlier, that's good.

From the same page what is your sync rate ?

trophymick · Jan 06, 2009, 21:27:56

I'm guessing it's these

UP Down
Current Rate: 1856 kbs 448 kbs
Max Rate: 1856 kbs 900 kbs

kinmel · Jan 06, 2009, 21:36:01

Your line is still losing sync regularly and the rate is being reduced accordingly.

All you can do for now is hang on in there and see how it settles, but it doesn't look good, we would expect the 2700 to hold on better than this.

trophymick · Jan 06, 2009, 21:40:28

I'll keep checking and report back tomorrow.
Thanks for looking

Sebby · Jan 06, 2009, 22:24:33

Quote from: kinmel on Jan 06, 2009, 21:24:05
Your noise margin has improved since earlier, that's good.

It's probably just that there is more noise around this evening, and in fact the target is still 15dB.

kinmel · Jan 06, 2009, 22:26:03

Quote from: Sebby on Jan 06, 2009, 22:24:33
It's probably just that there is more noise around this evening, and in fact the target is still 15dB.

I think you are right

Sebby · Jan 06, 2009, 22:28:00

Still, if the 2700 helps to stabilise things, it could genuinely drop in the next few weeks.

Have any of asked you about your wiring, Mick?

trophymick · Jan 06, 2009, 22:47:52

No, haven't had any questions about wiring. If you mean into the BT socket, I don't have any extensions (or bell wire), it's wired via a filter (brand new BT filter) into the one and only master socket, via a 2metre DSL cable to router, then hard wired (RJ45) to my PC. Also I have another extension from the router(RJ45) into the downstairs bedroom, but that computer is not in use at the moment. I have wireless working, it worked on my daughters laptop last night

Something has happened, it was flying last night and most of today

But not being too technically minded, I don't know what

Would trying my other router (Dynamode R- ADSL C4W EG) make a difference?

Rik · Jan 07, 2009, 09:13:02

Have you gone back to using a Netgear, Mick?

trophymick · Jan 07, 2009, 13:39:27

I've just got back in, been out all morning listening to b*llsh*t

As I came past the exchange down the road, there was a BT 4x4 outside (that usually spells trouble

), got in the house and the service had dropped

It's back on now (obviously) but the speed (sync rate?) is dire

I did this test a few minutes ago http://www.speedtest.net/result/385673894.png
I will persevere with the 2700 for the day, and if there is no improvement I will change back to the Dynamode router tomorrow, if only as a test as to what is wrong

My personal bet is BT

Sebby · Jan 07, 2009, 13:54:05

Quote from: trophymick on Jan 06, 2009, 22:47:52
No, haven't had any questions about wiring. If you mean into the BT socket, I don't have any extensions (or bell wire), it's wired via a filter (brand new BT filter) into the one and only master socket, via a 2metre DSL cable to router, then hard wired (RJ45) to my PC. Also I have another extension from the router(RJ45) into the downstairs bedroom, but that computer is not in use at the moment. I have wireless working, it worked on my daughters laptop last night Something has happened, it was flying last night and most of today But not being too technically minded, I don't know what Would trying my other router (Dynamode R- ADSL C4W EG) make a difference?

That's what I wanted to know, but unfortunately it looks like your setup is fine.

trophymick · Jan 07, 2009, 14:03:04

I'm a bit of a dunderhead when it comes to broadband (I can manage the basics), could someone explain briefly in DH terms, why my connection was nearly 3meg for the past few days, and (it seems) all of a sudden it drops down to under a meg.

Has someone turned the tap down to a trickle, is it voodoo or do I need to twirl round in a anti-clockwise direction for a day or two?

Is it the nature of the beast?

Sebby · Jan 07, 2009, 14:07:37

Is it just the speed that has dropped, Mick, or is it actually the sync? Please post the router stats again.

trophymick · Jan 07, 2009, 14:16:23

Here you go

DSL        Down        Up
Current Rate:       2336 kbs       448 kbs
Max Rate:       2336 kbs       912 kbs
Current Connection:
   Current Noise Margin:       7.0 dB       21.0 dB
   Current Attenuation:       49.4 dB       28.5 dB
   Current Output Power:       18.9 dBm       12.3 dBm

Does this make any sense

Rik · Jan 07, 2009, 15:28:10

Faster than at reply #35, Mick, not as fast as at reply #25, but your margin appears to be back to 6db, or you've got a lot of noise on the line after re-syncing. The speed at #35 would have dropped your profile and, for the next five days, that will be limiting your speed. That's still a very low sync speed for a 49db line, though, so I wonder if the line is in poor condition or passes by some sort of industrial activity or railway line?

trophymick · Jan 07, 2009, 16:23:39

Hmmm,no railway line up here, and there's nothing north of the exchange (where I am), there are some contractors south of the exchange putting a new water mains in

Would temporary traffic lights affect things, they have some south of the exchange? All this work is being done along the B709, from just north of Bentpath (where my exchange is) down to Langholm.