Does my line have issues?

My line doesnt seem so stable on adsl2+ keep seeing drops or resyncs, since moving to Surfwise last week.

Router stats below. Things seemed fine at first but despite getting initial syncs at 10200 llast week things eem not so hot now, have to say a gain of just over 2 megs over adsl1 is a bit of a disappointment considering ly ine is only 3k physical.

Modem Type: Built in modem - ADSL
DSL Line (Wire Pair): Line 1 (inner pair)
Current DSL Connection:
Down Up
Rate: 9234 kbs 1023 kbs
Max Rate: 8905 kbs 1144 kbs
Noise Margin: 5.9 dB 7.1 dB
Attenuation: 43.3 dB 25.8 dB
Output Power: 19.4 dBm 11.8 dBm


Protocol: G.DMT2+ Annex A
Channel: Interleaved
DSLAM Vendor Information Country: {46336} Vendor: {BDCM} Specific: {34977 }
ATM PVC: 0/38


Rate Cap: 8905 kbs
Attenuation @ 300kHz: 43.3 dB
Uncanceled Echo: -17.1 dB Ok
VCXO Frequency Offset: 1.1 ppm Ok
Final Receive Gain : 19.7 dB Ok
Excessive Impulse Noise: 0 Ok

Traffic StatisticsIP Traffic Bytes Packets Errors %
Transmit: 843650 23 0 0
Receive: 24269980 19774 0 0


ATM Traffic Cells Errors %
Transmit: 2373809 0 0
Receive: 24043436 0 0

DSL Link Errors

Collected for 8:43:28 Since Current Current Time Since
Reset 24-hr int. 15-min int Last Event
ATM
Last Event
Cell Header Errors 2869 2869 352 0:00:01
Loss of cell Delineation 414 414 99 0:00:30


DSL
Link Retrains : 3 3 1 0:00:30
DSL Training Errors: 0 0 0 0:00:00
Training Timeouts: 0 0 0 0:00:00
Loss of Framing Failures: 5 5 2 0:00:30
Loss of Signal Failures: 5 5 2 0:00:30
Loss of Power Failures: 0 0 0 0:00:00
Loss of Margin Failures: 5 5 2 0:00:30
Cum. Seconds w/Errors: 358 358 17 0:00:01
Cum. Sec. w/Severe Errors: 67 67 14 0:00:02
Corrected Blocks: 24025 24025 939 0:00:01
Uncorrectable Blocks: 3459 3459 451 0:00:01
DSL Unavailable Seconds: 87 87 24 0:00:09

Any views?

Things have cone crazy overnight. now 9 retrains!

Am also seeing an error message I have not seen in my stats before.

Excessive Impulse Noise: 1 More Impulse Noise Protection Recommended

Looks like time for a chat with support later today when I have time.

Your sync is spot on for your attenuation. Not sure what vivaciti will do. As you know my line is very low sync for the attenuation but am still getting drops - they have suggested making the target snr 9db which will only make my sync worse! I expect thats what they will do with you.

Ask for INP2?

If you are suddenly seeing frequent disconnections on what was previously a stable line/connection, then there is a problem/fault somewhere,

Increasing target SNR or ramping up INP May reduce the disconnections but will certainly reduce the sync possibly to a point that being on ADSL2+ is pointless as the sync rate would be on a par with the 8000kbps limit of G.DMT , and simply masking the underlying issue/s

But as your line profile suggests that you are already on interleaved,so there maybe some level of inp applied already, plus you have a higher than what is considered to be the average target margin already, so basically if your are seeing problems now ramping up SNRM ECT you are still gonna see issues, Double check your wiring filters, test in test socket too, to rule out your own extensions ect, try a different router to be sure it isn't that , don't forget to also check the voice side too for crackles pops ect

The filter was changed quite recently due to issues on uncancelled echo - router message suggested filter and that seemed to help. I have been in test socket for about 3 months. There were low sync & no BT speedtest function issues with this line in Jan, which appeared to have cleared all except an error message on the BT speedetester which while it was now working - wasnt producing an IP profile figure or actually logging speedtests agaisnt my line.

I'm sure there is still an issue with my line - and I wish I could get away frpom BT group cpompletely as they only seem keen to collect rental on the voiceline that I dont use except for broadband, while seeming totally reluctant to do any maintainance in return.

Im gonna put in a poisoned router today to stop BT group poisoning my router with dodgy firmware - I have been made aware that some issues exist in the new 6.3.x version they have been stealthing out to everyone with an Ex business 2-wire 2700.

Edited by deleted (Fri 23-Mar-12 09:13:53)

There is definitely a problem.. am seeing thruput almost at zero at times - a slower speed than BTw at its worst. I have a guest at the moment but after the weekend I will give Viva a call..

Not sure if you problems are down to exchange or line issues, but might be worth considering getting a Billion BIPAC 7800n Router, Great for holding stability on long lines, and is know to increase the sync, but the best thing is you can play with the SNR for speed vs stability I used BT 2Wire for a long time, but since switched i get zero dropouts.. my Vivaciti goes live tomorrow ill post an updates to let you know how my connection goes.

In reply to a post by warweezil:

There is definitely a problem.. am seeing thruput almost at zero at times - a slower speed than BTw at its worst. I have a guest at the moment but after the weekend I will give Viva a call..

If you are with an llu supplier then the BT ip profiling ECT is no longer, as the surfwise provider has some control over it, so BT are not longer a factor, apart from the line plant to your home , and i know only too well ,what BT seem to consider is acceptable for DSL speeds , If they make no guarantees for dsl performance across their line plant then they should not be taking money from it by charging isp's The BT speed tester will not work with LLU connections ,

Edited by tommy45 (Sun 25-Mar-12 17:53:04)

Yeah My comments were making a comparison between a BTw based service with Red VPs and the LLu service I am on now. Actually yhere is ONE aspect that BT may ahve borked for me, the firmware in my router - It has updated itself and the new version appears to be very buggy from what I have read.

This morning I awoke to a line that had Sync but no connection. after filter and router swaps Vivaciti escalated the issue to second line and by lunch time it was back in service.

Have now set up another 2wire with the old 6.1.1.48 firmware and looked up poisoning the Provisoning DNS, so with luck my router will remain as I want it, not be borked by BT's buggy 6.3.x.x firmware.

Podcasts seem slow today tho.

Edited by deleted (Tue 27-Mar-12 16:40:07)

Mine was down too, Vivaciti advised Pembroke exchange had the outage, back on by lunch too.

so far my line originally synced at 13000, but now its down to 9000 file a ticket lol.

Well that Borked it! Came back with a 10000Kps+ sync, but swapping out router mid afternoon yesterday took me south of that. Had some wireless issues this morning so had another crack at the router and ended up ona sync of 8505

Just run a test at http://internet-speedtest.net/

Thank you for submitting your speedtest results. This will aid our technicians if you have an issue.
We recorded your speed asDownload 4933 KBits/s (616.625 KBytes/s)
Upload 838 KBits/s (104.75 KBytes/s)

Not so Impressive.

I have noted that since I raised a ticket on this line with UKFSN in January my attenuation has risen from 41.0db to 43.4..... is that something to do with being unbundled?

Its normal for your attenuation to increase by about 3db when you switch to adsl2+

Have you raised a ticket with vivaciti? If so what have they said?

I am down to 8500!! no reset on router, attenuation 35Db not moved and SNR has even reduced to 2.5Db, no reply from my ticket, ran some tests as advised,

got results varying lowest 1.6mb highest 7mb, my upload speed seems fine syncing constantly at over 1000k and speed test results giving at least 0.84.

i have a feeling we have some sort of problem at the exchange Warweezil, I should be syncing around 13000Kb at least 10000Kb, we are on same exchange but opposite sides of the town.

still awaiting a reply from Vivaciti have completed what they requested will update, also i was down yesterday too, Vivaciti advised me it was an outage at the exchange.

I also seem to be stuck at 8500sync despite that on the first day with vivaciti I saw over 10000kps. According to my router I am on Fast Path so I guess interleaving isnt an issue here.

Im starting to wonder if there are issues at Pembroke Dock exchnage that have not yet been fully rectified. They seem to have a knack of only doing half a job round here, hence my line showing a speedtest error on Enta where the BT tester couldnt determine my IP profile and no tests were being logged against my line, come to think of it that ended up as a low sync issue and was the only way to get a long term failure of BTs tester resolved to any degree at all.

I guess its ticket time - just when I dont need to be bothering about a line underperforming.

Maybe BTs boys dont like us getting more than 8 megs

YES it does. Talked to Vivaciti today, they have put me on a 9db margin they say they are seeing a lot of disconnections on my line. So there goes much of my adsl2 speed gain

I guess that means that the fix BT put in recently hasnt sorted the underlaying issue that I am sure has been present in this line for a long time - years in fact.

What other area could you have a situation where you are expected to put up with sub standard stuff while paying for the privilege year in year out?. SORT IT OUT OPENREACH, this is beyond funny now. Ive changed everything except the copper.

This is where the network monopoly that operates in many areas does not serve the consumer.

Edited by deleted (Fri 30-Mar-12 20:20:31)

I suppose one consolation is that we are now on a unlimited plan, and for me a cheaper plan too...??

My change is the data allowance... or lack of a peak cap whichever way you want to look at it. I was with Enta ans so was at the same price. Im just so sick of being told that I need to be grateful for having what is apparently a relatively slow speed for the UK and that is only by a fluke - BT wont invest here and seem relucatant to even maintain the local loop to a decent standard.... too busy flinging upgrade after upgrade at selected spoiled areas.

Im still where I was to a great extent, although the "Good time speeds" are maybe 2 meg faster, the slow down is almost as radical, a couple fo days back we had podcast downloads that were crawling... up from an average of a couple of minutes to over half an hour (No thruput figures are given by iTunes for this) but the same podcasts that are downloaded each week - there are 20 podcasts from 11 different sources, and while they did not all update that week the ones that did were ALL taking an noticably longer time to download - indicating to me that the issues are not with the "source server". this wasnt an "oh it isnt quite finished" thing... we couldnt believe how slow this was - despite now being on a faster service.

I want to make this clear that I dont believe this is a "Vivaciti issue", Ive had problems here for a long time, maybe one day Openreach will put in a proper fix and actually do the job right - but excuse me if I dont hold my breath waiting! Considering how many lines exist purely to support braodband - I know of over a dozen - it is time that the BT group accepted that the local Loop needs to be properly maintained to ensure that the service is as good as is technically possible for the individual line, because without broadband there would be a far lower uptake of landlines. The lines should be fit for purpose - and that includes our old friend "using reasonable skill and care" in the provision and maintainance of lines. Most of the people who trumpt that lines only have to support voice are the same people with good quality services in areas that are spoiled for choice.

When will OFCOM get out of bed with BT and start looking after the consumer on this one?

MTU: 1432

DSL DetailsModem Type: Built in modem - ADSL
DSL Line (Wire Pair): Line 1 (inner pair)
Current DSL Connection:
Down Up
Rate: 8365 kbs 1022 kbs
Max Rate: 8373 kbs 1056 kbs
Noise Margin: 9.0 dB 10.2 dB
Attenuation: 43.7 dB 25.9 dB
Output Power: 19.4 dBm 12.1 dBm


Protocol: G.DMT2+ Annex A
Channel: Fast
DSLAM Vendor Information Country: {46336} Vendor: {BDCM} Specific: {34977 }
ATM PVC: 0/38


Rate Cap: 8373 kbs
Attenuation @ 300kHz: 43.7 dB
Uncanceled Echo: -15.4 dB Ok
VCXO Frequency Offset: 1.5 ppm Ok
Final Receive Gain: 20.0 dB Ok
Impulse Noise Comp. Tones: 0 Ok
Excessive Impulse Noise: 0 Ok

Traffic StatisticsIP Traffic Bytes Packets Errors %
Transmit: 138220205 525786 0 0
Receive: 455366237 599836 0 0


ATM Traffic Cells Errors %
Transmit: 3338450 0 0
Receive: 10036864 0 0

DSL Link Errors

Collected for 16:37:08
Since Current Current Time Since
Reset 24-hr int. 15-min int. Last Event
ATM
Last Event
Cell Header Errors 1216 1216 5 0:00:11
Loss of cell Delineation 61 61 0 0:12:53


DSL
Link Retrains: 0 0 0 0:00:00
DSL Training Errors: 0 0 0 0:00:00
Training Timeouts: 0 0 0 0:00:00
Loss of Framing Failures: 0 0 0 0:00:00
Loss of Signal Failures: 0 0 0 0:00:00
Loss of Power Failures: 0 0 0 0:00:00
Loss of Margin Failures: 0 0 0 0:00:00
Cum. Seconds w/Errors: 1563 1563 11 0:00:11
Cum. Sec. w/Severe Errors: 2 2 0 12:40:02
Corrected Blocks: 0 0 0 0:00:00
Uncorrectable Blocks: 2097 2097 12 0:00:11
DSL Unavailable Seconds: 35 35 0 16:36:32

*Current stats*

I know a lot of this wont be popular amongst some here but then they are often the ones with better maintained services and infrastructure where investment has happened. If I wanted a poor service id sign up to a supercheap bundle or sky connect or 02 access (I have an option to take either as an exsiting customer in an "off net" area) but I understand that the cheaper options are not going to meet my expectations, and while I realise we are off Bt groups investment radar both in terms of WBC and Fibre (and it seems maintainance) I do expect my line to be capable of the "best effort" for its length and at the moment that ISNT happening, and hasnt done for along time. I'm afraid "you have a connection what more do you want?" isnt a good enough attitude from the supplier of the local infrastructure,

Edited by deleted (Sat 31-Mar-12 10:40:44)

Sounds like a mess

Well 9db settled it down (with a resultant and disappointing loss of speed).... until yesterday... the last 48 hours have seen a lot of rain, and suddenly I am seeing occasional random resyncs (2 in the last 48 hours that I know of and 1 deliberate one as the first drop lowered my sync into the 7XXX level and with that I may as well be back on Entas 8 meg service!!!! ... seems to suggest that BT still haven't actually fixed the issue that has been in my line for a long long time - the problem has seen several routers and filters, 2 DECT Phone systems and 3 Sky Boxes (although I no longer plug them into the phone line being out of contract) and a couple of ISPs - this has been an issue with both Pipex and Enta - and I believe I have moved ports a couple of times in the past due to complete loss of service on 2 occasions.

Weather changes... stuff happens.... hmmm am I being paranoid here? Looks like its back to the phones for another round of try to get Openreach to actually fix the line properly, as well as the drops, 9db means my line now underperforms and is returning close to what a good quailty line at my distance would give on ADSL1!

Time to find out if the Vivaciti Support guys are adept at getting Openreach to do some work.

Wish me luck... on past evidence I'm gonna need a bucketful