When you say summary stats tab, are you talking about either the

Connections Stats tab that you see when it first loads up or even the pbParams tab that shows the line Attenuation, signal Attenuation etc

If you are then they are saved in the Current Stats folder

Or is there an actual summary stats screen that I've not seen myself?

Just having a quick look at those figures a few things stand out to me

1) when you are synced on 1/4 one of your SNR's has dropped down to 5.3, so something is effecting it there quite a bit, when you mention that the next data is 40+ days later, what is the SNR for these days leadng upto the 19th june?, is it still close to 6 or is it constantly falling?

2)

VDSL Band Status D2
Line Attenuation(dB):18.1
Signal Attenuation(dB):25.1

If you look at that you can see that the Signal Attenuation is a lot higher than your line attenuation. It is believed that as D2 contains the tones that ADSL uses that the higher attenuation on the signal over the line is due to crosstalk if that's the case they yours is very high (mine is 18.4 line and 21.9 signal)

3) The crackling on the line is obviously not good and something to keep an eye on (ear in this case) as that will need to be logged as a fault (voice side not BB side) if it continues as that will effect BB, you would normally of expected to of seen an issue show up on the BB stats when it happened though.

I mean the first summary tab on the main summary screen - I looked but can't find a graph of that exact screen as such in the folder.

See HERE. The other graphs that either in the all-in-one summary or the separate versions I can handle okay.

Yeah for some reason I thought that was in the current folder along with the other but after looking clearly it's not.

The 40+ days I mentioned refers to the period immediately before the hiccup i.e. back into mid May where it had been stable at around 6dB+/- a fraction for that period.

The SNR margin was dropping slowly after April and into May as installs took place and for various reasons I was powering off the modem for periods. As I said before the SNR and Attainables would also jump about when I knew that installs had taken place usually up or down maybe 0.5 - 1dB suddenly (and maybe back UP again back to where they were) which is when the suggestion that there were one or more bad crimps that contractors were disturbing came from one of the engineers (I'm assuming this is where the crackling is now coming from?).

These were my stats a couple of hours after installation back in Feb

Status: Showtime
Retrain Reason:	0
Max:	Upstream rate = 15178 Kbps, Downstream rate = 61964 Kbps
Path:	0, Upstream rate = 9995 Kbps, Downstream rate = 39973 Kbps

Link Power State:	L0
Mode:			VDSL2 Annex B
VDSL2 Profile:		Profile 17a
TPS-TC:			PTM Mode
Trellis:		U:ON /D:ON
Line Status:		No Defect
Training Status:	Showtime
		Down		Up
SNR (dB):	 16.8		 9.8
Attn(dB):	 0.0		 0.0
Pwr(dBm):	 11.7		 6.0

At that time, I had been put on 40/10 and not 80/20 as ordered.

When that was fixed I got:

Max:	Upstream rate =    15044 Kbps, Downstream rate = 60292 Kbps
Path:	0, Upstream rate = 14841 Kbps, Downstream rate = 59613 Kbps
                  Up             Down
SNR (dB):	 6.4		 6.2
Attn(dB):	 0.0		 0.0
Pwr(dBm):	 11.8		 6.9

Happy Days!!

Anyway, when I restarted the modem it has always resynced at 6db but I don't recollect it ever sliding below about 5dB - and at no point (until the last week that is) has it ever resynched via the DLM except for the initial one in early March when I had millions of errors (and synced at 60!)

I notice that DSLStats reports both Line and Signal attenuation in pbParams whereas HG612Stats just reports Line attenuation in that summary I referred to - but the latter reports the Line attenuation using the Signal attenuation figure!

Also your quote of D2 figs looks instead like the D1 data?

The stats from the upgraded firmware have a bit more info inc D3 attenuation (at 13:46 today)

Max:	Upstream rate = 10177 Kbps, Downstream rate = 40364 Kbps
Bearer:	0, Upstream rate = 10070 Kbps, Downstream rate = 34771 Kbps

Discovery Phase (Initial) Band Plan
US: (6,31) (882,1193) (1984,2770) 
DS: (33,857) (1218,1959) (2795,4083) 
Medley Phase (Final) Band Plan
US: (6,31) (882,1193) (1984,2521) 
DS: (41,857) (1218,1959) 
	  VDSL Port Details		  Upstream		  Downstream
Attainable Net Data Rate:	    10177 kbps		    40364 kbps
Actual Aggregate Tx Power:	       6.0 dBm		     11.8 dBm
====================================================================================
  VDSL Band Status	U0	U1	U2	U3	U4	D1	D2	D3
  Line Attenuation(dB):	4.5	37.3	53.3	N/A	N/A	18.1	48.0	75.4
Signal Attenuation(dB):	4.5	37.3	52.9	N/A	N/A	25.1	47.7	N/A
        SNR Margin(dB):	6.3	6.0	6.2	N/A	N/A	6.4	6.4	N/A
         TX Power(dBm):	-3.5	-3.9	4.9	N/A	N/A	9.9	7.4	N/A

I have DSLStats producing this text file now so will add to the live view in my sig.

FWIW the new modem is a 3B and the old one was a 2B.

Another slight oddity, in DSLStats the firmware line says Annex A whereas the Stats table shows Annex B??

I am using that one also and have so for many months now.

Hi Tony,

Sorry I did obviously mean D1 band not D2 (not sure why I put that), but the answer is still the same, D1 uses the same bands as ADSL so people believe that the higher signal attenuation is a result of cross talk and going by the figures I've seen against others yours is high.

Our figures are very similar which is not really surprising considering my cabinet is 700m away and yours is 800m, you have higher speeds than me though which would be a little bit of a surprise if part of my line wasn't aluminium, anyway here is my stats below.

http://i206.photobucket.com/albums/bb242/Master_Yoda...


Just out of interest what does the BT checker say your estimated speeds are now??, If you are 800m away your line was doing [censored] well to have those 60meg speeds.

If you look here

http://www.thinkbroadband.com/guide/fibre-broadband....

you can see what the estimated speeds are with cross talk and going by mine and my friends figures these appear to be pretty darn close, maybe a little low but then obviously each line is different.

I had an engineer come round to fix the issue I had and it was that it had a loose connection in the cabinet and I've not got a boost of speed back like I lost a while back (like you have), I also had the boost when engineer was at the cab etc)

I hope you get your speed back but since this is pretty much exactly the same as what happened to my line and it is believed to be cross talk that's the issue then I don't think you will be getting that speed back, especially if you are indeed 800m away from your cabinet.

Like I said I'm hope I'm wrong, I'm just going by what I've been told by the OR engineers that have been to my line and I know how frustrating the speed drop is (I went from 53 down to 31ish) and no-one really knows for sure why, I've just been told cross talk and length of line and that it's within the expected speeds.

Will be interesting to see what your BT estimated speeds on the checker are though.

Okay. You need to look at this thread on the HG612 Stats I started as there is a query on those actual figures! BaldEagle1 has just made some comments that I haven't quite fathomed out yet... Feel free to pile in!

I always had a higher ADSL2 speed than the estimates - around 9.5-10Mbps. One thing in my favour is that when I worked for BT back in the 90s, they had to get various Kilostream and other feeds in here and I needed a new armoured cable to replace what I had. This line is on one of those pairs (I do have another line if necessary, I did have ADSL on both at one point). That new cable was run down from some way up the road... There is aluminum around here but it's on the other side of the cab.

My estimates are:

Telephone Number ****** on Exchange HURSTPIERPOINT is served by Cabinet 4 

FTTC Range A (Clean) 	        43.9 	32.8 	9.3 	6.6 	-- 	Available
FTTC Range B (Impacted) 	37.5 	20 	9.3 	5.3 	-- 	Available
 
WBC ADSL 2+ 	          Up to 6 	-- 	3 to 8.5 	Available
WBC ADSL 2+ Annex M 	Up to 6 	Up to 1 	3 to 8.5 	Available
ADSL Max 	Up to 5 	-- 	4 to 6 	Available
WBC Fixed Rate 	2 	-- 	-- 	Available
Fixed Rate 	2 	-- 	-- 	Available

Which is pretty well dead on - or was for 40 days+ Now it's at the bottom end of Clean. The 800m is a pretty good estimate it's all underground on a country lane which is not too bent with fields on three sides and I can follow the chambers in the road. There are a few telegraph poles to ca 1870 period properties. Neighbour immediately opposite gets 44Mbps, and next door 41. I was first on the cab which may explain the high initial speeds.

I'm working on getting HG612 Stats live online at the moment as well as DSLstats

I may be wrong but I still think there is a loose connection and room for improvement! Hope springs eternal...

Edited by tbailey2 (Fri 27-Jun-14 22:01:16)